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In my HTML document, I need a 5-9 digit number from the user in a input-number box. I've looked it up and none of the possible solutions worked. My current code looks like this:
<div class="usernumber">
<input type="number" input placeholder="Type a 5-9 digit number" style="color:rgb(134, 136, 130)">
</div>
I have tried to use the "range" attribute (unwanted effect) , and the "maxlength" attribute is unsupported by number input types.
I think this is what you're looking for:
<input type="number" min="10000" max="999999999" step="1" />
Maybe this will help. It's a JavaScript solution that clears the value if it has more than 9 or less than 5 digits.
document.querySelector('input').addEventListener('blur', (event) => {
var val = event.target.value;
if(val.length < 5 || val.length > 9){
event.target.value = '';
}
});
<div class="usernumber">
<input type="number" input placeholder="Type a 5-9 digit number" style="color:rgb(134, 136, 130)">
</div>
How do you make an HTML input tag that does not allow the input of 1. It could for instance type 2131 or 11, just not 1 by itself. I have tried using patternMismatch= "[1]{1}" but the website does not render a message.
You will have to check the value each time the user inputs something. On input, check if the value is 1, if so clear the input field.
Code:
let input = document.querySelector('input');
input.addEventListener('input', (e) => {
if (!input.value == "1") return;
input.value = "";
})
Try using input type="number" with a step of 1 and a min of 2, like so:
<form action="/action_page.php"><label for="points">Points:</label> <input type="number" id="points" name="points" step="1" min="2" /> <input type="submit" /></form>
I am using the following style attribute to set the user input to uppercase so that when the user starts typing in the text box for example railway, then it should be altered to capital letters like RAILWAY without the user having to press the Caps-lock button.
This is the code I am using for the input:
<input type = "text" class = "normal" name = "Name" size = "20" maxlength = "20"> <img src="../images/tickmark.gif" border="0" style='text-transform:uppercase'/>
But I am not getting the desired output by using this attribute.
You've put the style attribute on the <img> tag, instead of the <input>.
It is also not a good idea to have the spaces between the attribute name and the value...
<input type="text" class="normal"
name="Name" size="20" maxlength="20"
style="text-transform:uppercase" />
<img src="../images/tickmark.gif" border="0" />
Please note this transformation is purely visual, and does not change the text that is sent in POST.
NOTE: If you want to set the actual input value to uppercase and ensure that the text submitted by the form is in uppercase, you can use the following code:
<input oninput="this.value = this.value.toUpperCase()" />
I think the most robust solution that will insure that it is posted in uppercase is to use the oninput method inline like:
<input oninput="this.value = this.value.toUpperCase()" />
EDIT
Some people have been complaining that the cursor jumps to the end when editing the value, so this slightly expanded version should resolve that
<input oninput="let p=this.selectionStart;this.value=this.value.toUpperCase();this.setSelectionRange(p, p);" />
The answers with the text-transformation:uppercase styling will not send uppercased data to the server on submit - what you might expect. You can do something like this instead:
For your input HTML use onkeydown:
<input name="yourInput" onkeydown="upperCaseF(this)"/>
In your JavaScript:
function upperCaseF(a){
setTimeout(function(){
a.value = a.value.toUpperCase();
}, 1);
}
With upperCaseF() function on every key press down, the value of the input is going to turn into its uppercase form.
I also added a 1ms delay so that the function code block triggers after the keydown event occured.
UPDATE
Per recommendation from Dinei, you can use oninput event instead of onkeydown and get rid of setTimeout.
For your input HTML use oninput:
<input name="yourInput" oninput="this.value = this.value.toUpperCase()"/>
The problem with the first answer is that the placeholder will be uppercase too. In case you want ONLY the input to be uppercase, use the following solution.
In order to select only non-empty input element, put required attribute on the element:
<input type="text" id="name-input" placeholder="Enter symbol" required="required" />
Now, in order to select it, use the :valid pseudo-element:
#name-input:valid { text-transform: uppercase; }
This way you will uppercase only entered characters.
try
<input type="text" class="normal"
style="text-transform:uppercase"
name="Name" size="20" maxlength="20">
<img src="../images/tickmark.gif" border="0"/>
Instead of image put style tag on input because you are writing on input not on image
Set following style to set all textbox to uppercase:
input { text-transform: uppercase; }
Using CSS text-transform: uppercase does not change the actual input but only changes its look.
If you send the input data to a server it is still going to lowercase or however you entered it. To actually transform the input value you need to add javascript code as below:
document.querySelector("input").addEventListener("input", function(event) {
event.target.value = event.target.value.toLocaleUpperCase()
})
<input>
Here I am using toLocaleUpperCase() to convert input value to uppercase.
It works fine until you need to edit what you had entered, e.g. if you had entered ABCXYZ and now you try to change it to ABCLMNXYZ, it will become ABCLXYZMN because after every input the cursor jumps to the end.
To overcome this jumping of the cursor, we have to make following changes in our function:
document.querySelector("input").addEventListener("input", function(event) {
var input = event.target;
var start = input.selectionStart;
var end = input.selectionEnd;
input.value = input.value.toLocaleUpperCase();
input.setSelectionRange(start, end);
})
<input>
Now everything works as expected, but if you have slow PC you may see text jumping from lowercase to uppercase as you type. If this annoys you, this is the time to use CSS, apply input: {text-transform: uppercase;} to CSS file and everything will be fine.
The issue with CSS Styling is that it's not changing the data, and if you don't want to have a JS function then try...
<input onkeyup="this.value = this.value.toUpperCase()" />
on it's own you'll see the field capitalise on keyup, so it might be desirable to combine this with the style='text-transform:uppercase' others have suggested.
Various answers here have various problems, for what I was trying to achieve:
Just using text-transform changes the appearance but not the data.
Using oninput or onkeydown changes the cursor position, so you can't, for instance, click in the middle of your existing input and edit it.
Saving the position works, but just seemed a bit kludgey.
It felt cleaner to me to just break the problem up into two parts: upper-casing what I'm typing while I type (text-transform), and upper-casing the submitted data (run toUpperCase onchange):
<input id = "thing" onchange="this.value = this.value.toUpperCase(); pr()" style=text-transform:uppercase /><p>
<b><span id="result"></span></b>
<script>function pr() {document.getElementById("result").innerHTML = document.getElementById("thing").value}</script>
Type something in that, hit return or click out of the input, then click in the middle of your previous entry, add some lc text, hit return...
IN HTML input tag just style it like follows
<input type="text" name="clientName" style="text-transform:uppercase" required>
in backed php/laravel use:
$name = strtoupper($clientName);
This will both show the input in uppercase and send the input data through post in uppercase.
HTML
<input type="text" id="someInput">
JavaScript
var someInput = document.querySelector('#someInput');
someInput.addEventListener('input', function () {
someInput.value = someInput.value.toUpperCase();
});
As nobody suggested it:
If you want to use the CSS solution with lowercase placeholders, you just have to style the placeholders separately. Split the 2 placeholder styles for IE compatibility.
input {
text-transform: uppercase;
}
input:-ms-input-placeholder {
text-transform: none;
}
input::placeholder {
text-transform: none;
}
The below input has lowercase characters, but all typed characters are CSS-uppercased :<br/>
<input type="text" placeholder="ex : ABC" />
<input style="text-transform:uppercase" type = "text" class = "normal" name = "Name" size = "20" maxlength = "20"> <img src="../images/tickmark.gif" border="0"/>
I went with the style text-transform:uppercase thing from poster. Then I just did the uppercase thing in php as well. Some people working too hard with that javascript.
You were close with the style being in the wrong place. You were trying to uppercase an image instead of the input.
$name = strtoupper($_POST['Name']);
I don't know why I wanted to throw in some extra stuff if it's a php page. This is something I like to do make it smoother for the person filling out the form.
<input style="text-transform:uppercase" type = "text" class = "normal" name = "Name" size = "20" maxlength = "20" value="<?php echo $name; ?>"> <img src="../images/tickmark.gif" border="0"/>
That's assuming you're using PHP as the backend and posting to the same page you are on. This will keep the user from having to fill out that part of the form again. Less annoying for the person filling out the form.
Try below solution, This will also take care when a user enters only blank space in the input field at the first index.
document.getElementById('capitalizeInput').addEventListener("keyup", () => {
var inputValue = document.getElementById('capitalizeInput')['value'];
if (inputValue[0] === ' ') {
inputValue = '';
} else if (inputValue) {
inputValue = inputValue[0].toUpperCase() + inputValue.slice(1);
}
document.getElementById('capitalizeInput')['value'] = inputValue;
});
<input type="text" id="capitalizeInput" autocomplete="off" />
Just use this oninput in your input field:
<div class="form-group col-2">
<label>PINCODE</label>
<input type="number" name="pincode" id="pincode" class="form-control" minlength="6" maxlength="6" placeholder="Enter Pincode" oninput="this.value = this.value.toUpperCase()" autocomplete="off">
</div>
Just add in your input(style="text-transform:uppercase")
<input type="text" class="normal" style="text-transform:uppercase" name="Name" size="20" maxlength="20">
<script type="text/javascript">
function upperCaseF(a){
setTimeout(function(){
a.value = a.value.toUpperCase();
}, 1);
}
</script>
<input type="text" required="" name="partno" class="form-control" placeholder="Enter a Part No*" onkeydown="upperCaseF(this)">
It seems the minlength attribute for an <input> field doesn't work.
Is there any other attribute in HTML with the help of which I can set the minimal length of a value for fields?
You can use the pattern attribute. The required attribute is also needed, otherwise an input field with an empty value will be excluded from constraint validation.
<input pattern=".{3,}" required title="3 characters minimum">
<input pattern=".{5,10}" required title="5 to 10 characters">
If you want to create the option to use the pattern for "empty, or minimum length", you could do the following:
<input pattern=".{0}|.{5,10}" required title="Either 0 OR (5 to 10 chars)">
<input pattern=".{0}|.{8,}" required title="Either 0 OR (8 chars minimum)">
There is a minlength property in the HTML5 specification now, as well as the validity.tooShort interface.
Both are now enabled in recent versions of all modern browsers. For details, see https://caniuse.com/#search=minlength.
Here is HTML5-only solution (if you want minlength 5, maxlength 10 character validation)
http://jsfiddle.net/xhqsB/102/
<form>
<input pattern=".{5,10}">
<input type="submit" value="Check"></input>
</form>
Yes, there it is. It's like maxlength. W3.org documentation:
http://www.w3.org/TR/html5/forms.html#attr-fe-minlength
In case minlength doesn't work, use the pattern attribute as mentioned by #Pumbaa80 for the input tag.
For textarea:
For setting max; use maxlength and for min go to this link.
You will find here both for max and min.
I used maxlength and minlength with or without required and it worked for me very well for HTML5.
<input id="passcode" type="password" minlength="8" maxlength="10">
`
minlength attribute is now widely supported in most of the browsers.
<input type="text" minlength="2" required>
But, as with other HTML5 features, IE11 is missing from this panorama. So, if you have a wide IE11 user base, consider using the pattern HTML5 attribute that is supported almost across the board in most browsers (including IE11).
To have a nice and uniform implementation and maybe extensible or dynamic (based on the framework that generate your HTML), I would vote for the pattern attribute:
<input type="text" pattern=".{2,}" required>
There is still a small usability catch when using pattern. The user will see a non-intuitive (very generic) error/warning message when using pattern. See this jsfiddle or below:
<h3>In each form type 1 character and press submit</h3>
</h2>
<form action="#">
Input with minlength: <input type="text" minlength="2" required name="i1">
<input type="submit" value="Submit">
</form>
<br>
<form action="#">
Input with patern: <input type="text" pattern=".{2,}" required name="i1">
<input type="submit" value="Submit">
</form>
For example, in Chrome (but similar in most browsers), you will get the following error messages:
Please lengthen this text to 2 characters or more (you are currently using 1 character)
by using minlength and
Please match the format requested
by using pattern.
I notice that sometimes in Chrome when autofill is on and the fields are field by the autofill browser build in method, it bypasses the minlength validation rules, so in this case you will have to disable autofill by the following attribute:
autocomplete="off"
<input autocomplete="new-password" name="password" id="password" type="password" placeholder="Password" maxlength="12" minlength="6" required />
The minLength attribute (unlike maxLength) does not exist natively in HTML5. However, there a some ways to validate a field if it contains less than x characters.
An example is given using jQuery at this link: http://docs.jquery.com/Plugins/Validation/Methods/minlength
<html>
<head>
<script src="http://code.jquery.com/jquery-latest.js"></script>
<script type="text/javascript" src="http://jzaefferer.github.com/jquery-validation/jquery.validate.js"></script>
<script type="text/javascript">
jQuery.validator.setDefaults({
debug: true,
success: "valid"
});;
</script>
<script>
$(document).ready(function(){
$("#myform").validate({
rules: {
field: {
required: true,
minlength: 3
}
}
});
});
</script>
</head>
<body>
<form id="myform">
<label for="field">Required, Minimum length 3: </label>
<input class="left" id="field" name="field" />
<br/>
<input type="submit" value="Validate!" />
</form>
</body>
</html>
Not HTML5, but practical anyway: if you happen to use AngularJS, you can use ng-minlength (or data-ng-minlength) for both inputs and textareas. See also this Plunk.
My solution for textarea using jQuery and combining HTML5 required validation to check the minimum length.
minlength.js
$(document).ready(function(){
$('form textarea[minlength]').on('keyup', function(){
e_len = $(this).val().trim().length
e_min_len = Number($(this).attr('minlength'))
message = e_min_len <= e_len ? '' : e_min_len + ' characters minimum'
this.setCustomValidity(message)
})
})
HTML
<form action="">
<textarea name="test_min_length" id="" cols="30" rows="10" minlength="10"></textarea>
</form>
See http://caniuse.com/#search=minlength. Some browsers may not support this attribute.
If the value of the "type" is one of them:
text, email, search, password, tel, or URL (warning: not include number | no browser support "tel" now - 2017.10)
Use the minlength(/ maxlength) attribute. It specifies the minimum number of characters.
For example,
<input type="text" minlength="11" maxlength="11" pattern="[0-9]*" placeholder="input your phone number">
Or use the "pattern" attribute:
<input type="text" pattern="[0-9]{11}" placeholder="input your phone number">
If the "type" is number, although minlength(/ maxlength) is not be supported, you can use the min(/ max) attribute instead of it.
For example,
<input type="number" min="100" max="999" placeholder="input a three-digit number">
New version:
It extends the use (textarea and input) and fixes bugs.
// Author: Carlos Machado
// Version: 0.2
// Year: 2015
window.onload = function() {
function testFunction(evt) {
var items = this.elements;
for (var j = 0; j < items.length; j++) {
if ((items[j].tagName == "INPUT" || items[j].tagName == "TEXTAREA") && items[j].hasAttribute("minlength")) {
if (items[j].value.length < items[j].getAttribute("minlength") && items[j].value != "") {
items[j].setCustomValidity("The minimum number of characters is " + items[j].getAttribute("minlength") + ".");
items[j].focus();
evt.defaultPrevented;
return;
}
else {
items[j].setCustomValidity('');
}
}
}
}
var isOpera = !!window.opera || navigator.userAgent.indexOf(' OPR/') >= 0;
var isChrome = !!window.chrome && !isOpera;
if(!isChrome) {
var forms = document.getElementsByTagName("form");
for(var i = 0; i < forms.length; i++) {
forms[i].addEventListener('submit', testFunction,true);
forms[i].addEventListener('change', testFunction,true);
}
}
}
I wrote this JavaScript code, [minlength.js]:
window.onload = function() {
function testaFunction(evt) {
var elementos = this.elements;
for (var j = 0; j < elementos.length; j++) {
if (elementos[j].tagName == "TEXTAREA" && elementos[j].hasAttribute("minlength")) {
if (elementos[j].value.length < elementos[j].getAttribute("minlength")) {
alert("The textarea control must be at least " + elementos[j].getAttribute("minlength") + " characters.");
evt.preventDefault();
};
}
}
}
var forms = document.getElementsByTagName("form");
for(var i = 0; i < forms.length; i++) {
forms[i].addEventListener('submit', testaFunction, true);
}
}
In my case, in which I validate the most manually and using Firefox (43.0.4), minlength and validity.tooShort are not available unfortunately.
Since I only need to have minimum lengths stored to proceed, an easy and handy way is to assign this value to another valid attribute of the input tag. In that case then, you can use min, max, and step properties from [type="number"] inputs.
Rather than storing those limits in an array it's easier to find it stored in the same input instead of getting the element id to match the array index.
I used max and min then required, and it worked for me very well, but what am not sure is if it is a but coding method.
<input type="text" maxlength="13" name ="idnumber" class="form-control" minlength="13" required>
If desired to make this behavior, always show a small prefix on the input field or the user can't erase a prefix:
// prefix="prefix_text"
// If the user changes the prefix, restore the input with the prefix:
if(document.getElementById('myInput').value.substring(0,prefix.length).localeCompare(prefix))
document.getElementById('myInput').value = prefix;
Following #user123444555621 pinned answer.
There is a minlength attribute in HTML5 but for some reason it may not always work as expected.
I had a case where my input type text did not obey the minlength="3" property.
By using the pattern attribute I managed to fix my problem.
Here's an example of using pattern to ensure minlength validation:
const folderNameInput = document.getElementById("folderName");
folderNameInput.addEventListener('focus', setFolderNameValidityMessage);
folderNameInput.addEventListener('input', setFolderNameValidityMessage);
function setFolderNameValidityMessage() {
if (folderNameInput.validity.patternMismatch || folderNameInput.validity.valueMissing) {
folderNameInput.setCustomValidity('The folder name must contain between 3 and 50 chars');
} else {
folderNameInput.setCustomValidity('');
}
}
:root {
--color-main-red: rgb(230, 0, 0);
--color-main-green: rgb(95, 255, 143);
}
form input {
border: 1px solid black;
outline: none;
}
form input:invalid:focus {
border-bottom-color: var(--color-main-red);
box-shadow: 0 2px 0 0 var(--color-main-red);
}
form input:not(:invalid):focus {
border-bottom-color: var(--color-main-green);
box-shadow: 0 2px 0 0 var(--color-main-green);
}
<form>
<input
type="text"
id="folderName"
placeholder="Your folder name"
spellcheck="false"
autocomplete="off"
required
minlength="3"
maxlength="50"
pattern=".{3,50}"
/>
<button type="submit" value="Create folder">Create folder</button>
</form>
For further details, here's the MDN link to the HTML pattern attribute: https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/pattern
You can use minlength in input tag or you can regex pattern to check the number of character or even you can take the input and check the length of the character and then you can restrict based upon your requirement.
Smartest Way for maxlength
$("html").on("keydown keyup change", "input", function(){
var maxlength=$(this).attr('maxlength');
if(maxlength){
var value=$(this).val();
if(value.length<=maxlength){
$(this).attr('v',value);
}
else{
$(this).val($(this).attr('v'));
}
}
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<input type="text" maxlength="10">
I've used the follow tag with numbers:
<input type="tel" class="form-control" name="Extension" id="Extension" required maxlength="4" minlength="4" placeholder="4 Digits" />
Add both a maximum and a minimum value. You can specify the range of allowed values:
<input type="number" min="1" max="999" />
How do I limit or restrict the user to only enter a maximum of five characters in the textbox?
Below is the input field as part of my form:
<input type="text" id="sessionNo" name="sessionNum" />
Is it using something like maxSize or something like that?
maxlength:
The maximum number of characters that will be accepted as input. This can be greater that specified by SIZE , in which case the field
will scroll appropriately. The default is unlimited.
<input type="text" maxlength="2" id="sessionNo" name="sessionNum" onkeypress="return isNumberKey(event)" />
However, this may or may not be affected by your handler. You may need to use or add another handler function to test for length, as well.
The simplest way to do so:
maxlength="5"
So.. Adding this attribute to your control:
<input type="text"
id="sessionNo"
name="sessionNum"
onkeypress="return isNumberKey(event)"
maxlength="5" />
Add the following to the header:
<script language="javascript" type="text/javascript">
function limitText(limitField, limitNum) {
if (limitField.value.length > limitNum) {
limitField.value = limitField.value.substring(0, limitNum);
}
}
</script>
<input type="text" id="sessionNo" name="sessionNum" onKeyDown="limitText(this,5);"
onKeyUp="limitText(this,5);"" />
Make it simpler
<input type="text" maxlength="3" />
and use an alert to show that max chars have been used.
According to w3c, the default value for the MAXLENGTH attribute is an unlimited number. So if you don't specify the max a user could cut and paste the bible a couple of times and stick it in your form.
Even if you do specify the MAXLENGTH to a reasonable number make sure you double check the length of the submitted data on the server before processing (using something like php or asp) as it's quite easy to get around the basic MAXLENGTH restriction anyway
<input type="text" maxlength="5">
the maximum amount of letters that can be in the input is 5.
Maxlength
The maximum number of characters that will be accepted as input.
The maxlength attribute specifies the maximum number of characters allowed in the element.
Maxlength W3 schools
<form action="/action_page.php">
Username: <input type="text" name="usrname" maxlength="5"><br>
<input type="submit" value="Submit">
</form>
I always do it like this:
$(document).ready(function() {
var maxChars = $("#sessionNum");
var max_length = maxChars.attr('maxlength');
if (max_length > 0) {
maxChars.on('keyup', function(e) {
length = new Number(maxChars.val().length);
counter = max_length - length;
$("#sessionNum_counter").text(counter);
});
}
});
Input:
<input name="sessionNum" id="sessionNum" maxlength="5" type="text">
Number of chars: <span id="sessionNum_counter">5</span>
You can use
<input type = "text" maxlength="9">
or
<input type = "number" maxlength="9"> for numbers
or
<input type = "email" maxlength="9"> for email
validation will show up
<input type="number" id="xxx" name="xxx" oninput="maxLengthCheck(this)" maxlength="10">
function maxLengthCheck(object) {
if (object.value.length > object.maxLength)
object.value = object.value.slice(0, object.maxLength)
}
The following code includes a counted...
var count = 1;
do {
function count_down(obj, count){
let element = document.getElementById('count'+ count);
element.innerHTML = 80 - obj.value.length;
if(80 - obj.value.length < 5){
element.style.color = "firebrick";
}else{
element.style.color = "#333";
}
}
count++;
} while (count < 20);
.text-input {
padding: 8px 16px;
width: 50%;
margin-bottom: 5px;
margin-top: 10px;
font-size: 20px;
font-weight: 700;
font-family: Raleway;
border: 1px solid dodgerblue;
}
<p><input placeholder="Title" id="bike-input-title" onkeyup="count_down(this, 3)" maxlength="80" class="text-input" name="bikeTitle" ></p>
<span id="count3" style="float: right; font-family: Raleway; font-size:20px; font-weight:600; margin-top:-5px;">80</span><br>
Late to the party, but if you want a full proof way to restrict numbers or letters that is simply javascript and also limits length of characters:
Change the second number after .slice to set the how many characters. This has worked much better for me then maxlength.
Just Numbers:
oninput="this.value = this.value.replace(/[^0-9.]/g, '').replace(/(\..*)\./g, '$1').slice(0, 11);
Just Letters:
oninput="this.value=this.value.replace(/[^A-Za-z\s]/g,'').slice(0,20);"
Full example:
<input type="text" name="MobileNumber" id="MobileNumber" oninput="this.value = this.value.replace(/[^0-9.]/g, '').replace(/(\..*)\./g, '$1').slice(0, 11);"/>
Use maxlenght="number of charcters"
<input type="text" id="sessionNo" name="sessionNum" maxlenght="7" />
<input type="text" name="MobileNumber" id="MobileNumber" maxlength="10" onkeypress="checkNumber(event);" placeholder="MobileNumber">
<script>
function checkNumber(key) {
console.log(key);
var inputNumber = document.querySelector("#MobileNumber").value;
if(key.key >= 0 && key.key <= 9) {
inputNumber += key.key;
}
else {
key.preventDefault();
}
}
</script>