For my site, I code a button allowing to change the css of a class present in a div card. My button is located in the card-footer. Having several cards, I can't / don't think to retrieve the element with an id (as there will be X times the same ID)
In order to circumvent this system, I therefore use a parentElement which goes up to the div card
<div class="card">
<div class="card-body">
<p class="change">Change one</p>
<p class="change">Change two</p>
<p class="change">Change three</p>
</div>
<div class="card-footer">
<i id="updateData">change</i>
</div>
</div>
jQuery($ => {
$('#updateData').click(e => {
var element = e.target.parentElement.parentElement;
$('.change').css('display','none');
});
});
I would like to indicate that only the class "changes" present in my element variable and not all the classes in the page.
I don't know how to add a variable to my ".css" command, do you know how ?
Thanks in advance !
First of all since you will have multiple elements with same id that means that you should not use ID and use class instead. Id is meant to be unique. So yours id="updateData" should become class="updateData". Now you can grab all of those buttons and assign event to all of them instead of just first like you were by using id selector.
$('.updateData').click(e=> {});
Next in order to be able to use clicked element in jQuery way convert from arrow function to regular anonymous function since arrow function overrides this keyword. And now you can use jQuery to hide like
$('.updateData').click(function() {
element = $(this).parent().parent();
element.hide();
});
If you want more precise selection to hide only .change elements use
$('.updateData').click(function() {
element = $(this).parent().parent();
element.find(".change").hide();
});
Not bad, but more efficient, when you have multiple click targets, is delegation:
$(document).on("click", ".updateData", function() { ... });
Also .hide() is convenient, but rather then "change the css of a class" add a class "hidden" or something! In best case the class further describes what the element is. CSS is just on top.
Related
I have a lot of divs, they are the same but the data are differen(I use variable(array of objs) and for loop) but these details aren't important
<div class="item_wrapper">
<div class="item_wrapper_info">
<div class="left-line"></div>
<div class="subject">1</div> <== click here
</div>
<div class="additional_info"> <== display this block
some text
</div>
</div>
I want to achieve this:
If I click .item_wrapper_info div then I want to show .additional_info div
It should be probably done using this keyword.
If I click . item_wrapper_info block I want to find a div with the class name of . additional_info and make display = flex but I don't know how to trigger exactly its . additional_info div.
Probably I can click on .item_wrapper_info > . subject and then show its next neighbour
SOLUTION:
$(document).ready(() => {
$(".item_wrapper").click(function(){
var index = $(".item_wrapper").index(this); get index of a certain clicked .item_wrapper element on my page
$('.additional_info').eq(index).toggle(); using .eq toggle that certain element
});
})
It works for me
I haven't tested this code. Feel free to test it in a runnable snippet.
$(document).ready(() => {
$(".item_wrapper").click(function () {
var index = $(".item_wrapper").index(this)
$('.additional_info').eq(index).css("display","flex");
});
});
i have some <div></div> elements with draggable="true" attribute but same thing gets applied on child elements,but i dont want to apply it on child elements, So how do i prevent this default behavior?
code :
<div draggable="true" ondragstart="play(event)" ondrop="pause(event)" id="move">
<span id="text">
drag me
</span>
</div>
as i used dragable="true" on <div> so span also gets the same property.
I was having a similar event with a sortable drag-and-drop "list" I created. Each "row" of the list looks like this.
<div class='row' draggable='true'>
<div class='drag-handle' ></div>
<img class='icon-image' draggable='false'>
<input type='text' name='demo' >
<button class='remove-btn' onclick='removeItem(this,event)'>Remove</button>
</div>
When I tried selecting the text inside of the "input" element, somehow I would start dragging the whole "row". As frustrating as this was, the best solution I found was to simply apply the draggable='true' property to the item with the class="drag-handle" which would be my dragging icon that would fire the ondragstart(e) event.
The rest can be handled in JS
In JS, reference the parent element "row" by using the closest(".row") method
document.addEventListener("DOMContentLoaded", () => {
document.querySelectorAll('.drag-handle').forEach(handle => {
handle.addEventListener("dragstart", dragStart)
handle.addEventListener("drag", dragging)
handle.addEventListener("dragend", dragEnd)
})
function dragStart(e) {
document.querySelectorAll(".row").forEach(row=>{
row.addEventListener("dragover", dragOver)
})
var target_row = e.target.closest(".row")
target_row.classList.add("dragging")
}
Note:
I added a class of "dragging" to the one "row" that was going to be dragged so I could do a querySelectorAll('.row:not(.dragging)') for other operations, classes, etc, however, this is NOT required for the intended purpose to work. Just a bit more context that hope helps your problem.
first am sorry for bad English / grammar
am creating something where you show and hide.
but my problem is that when I click show/hide it only brings input box 1 on both buttons. and I want it to show/hide each box.
my problem is that. I don't want to use the id to define show/hide Element
because if I have more than 10 div with input boxes I have to define them all by getElementById I don't want that.
I want when I click on the show/hide it brings input box without getElementById
so that even if I have more then 10 input box to show I only click and show/hide without defining its id
function myFunction(event) {
var x = document.getElementById("mydv");
if (x.style.display === "none") {
x.style.display = "block";
} else {
x.style.display = "none";
}
x.parentNode.insertBefore(x, event.target.nextSibling);
}
document.addEventListener('click', function(event){
if(event.target.className.includes("dv1")){
myFunction(event);
}
});
<!DOCTYPE html>
<html>
<head>
<title> SHOW / Hide </title>
</head>
<body>
<ul>
<li>
<div id="mydv" style="display:none;">
<p>input box 1
<input type="text" name="textfield">
</p>
</div>
<button class="dv1">SHOW/HIDE</button>
</li>
<li><div id="mydv" style="display:none;">
<p>input box 2
<input type="text" name="textfield">
</p>
</div>
<button class="dv1">SHOW/HIDE</button></li>
</ul>
</body>
</html>
If you want to specify an element on a page, that can be similar in every way to other elements except perhaps text content or something else, realistically you need an id, as this is how JavaScript defines a unique element.
But what you can do, is change your HTML button, to contain a rel, which is an attribute, and then get that attribute and use that to specify which element id you're looking for.
You can then call a function and simply pass "this" as an argument.
HTML :
<button onclick="hideShow(this)" rel="mydv">Show/Hide</button>
JavaScript :
<script>
function hideShow(elem){
var ele = document.getElementById(elem.getAttribute("rel"));
if(ele.style.display == "none"){
ele.style.display = "block";
}
else{
ele.style.display = "none";
}
}
</script>
If you are absolutely abhorrent to using ID's, you can use child nodes and specify which child by number, but this means if ever you change anything, you will break your code, which is foolish. I recommend using unique ID's and simply changing your code in the above ways.
Short and lazy answer to your problems - if you are going to keep your current hierarchy, you can simply find DIV tag inside your LI parentNode (since its the only DIV tag).
Basically it goes like this - button press -> change focus from button to parentNode LI -> finds DIV.
in short - in function myFunction(event) change
var x = document.getElementById("mydv");
to
var x = event.target.parentNode.getElementsByTagName("DIV")[0];
Working example:
https://jsfiddle.net/w2a9zg46/1/
The problem is that getElementById refers to the first element with that id. It simply ignores everything else. Using the same id for more than one element is a bad practice. An id should be a unique reference to that element, use class instead.
I am working with a Web Form (html) and a CSS file and I wanna know what do I need to write in the CSS to make an action on one class or id- affect an other class or id. For example: I have a
<p class="hh">
Hello!
</p>
(^^ this p tag's class is "hh")
And another one:
<p class="gb">
Goodbye!
</p>
(^^ this p tag's class is "gb")
I wanna write something in the CSS file so that whenever I click on whatever there is in the "hh" class, it will make something change in the "gb" class, so if I click on the text "Hello!" it will make the color of the text "Goodbye!" green. Please help me! I try to find out how to do it for a long long time...
Thank you!
This sounds more like you need a javascript solution. In general you are not really able to change something on a click event in CSS. Consider following solution:
const hh = document.getElementById("hh");
const gb = document.getElementById("gb");
hh.addEventListener("click", function() {
gb.style.color = "green";
});
gb.addEventListener("click", function() {
hh.style.color = "red";
});
<div id="hh">
Hello!
</div>
<div id="gb">
Goodbye!
</div>
A common practice for doing this is by using JavaScript, which is known as the programming language of the web. If you've never used JavaScript before it can be a little bit confusing but if you have experience in other general purpose programming languages such as Python or Java then it shouldn't take much time to pick up.
To do what you are asking, there are a few possible ways to do this. I will share what I believe to be the most simple although not the most robust. You can use JavaScript events to fire off certain functions when certain particular things happen to your elements. For example, you can modify your HTML like so:
<p class="hh" onclick="doSomething()">Hello!</p>
Then, either in a separate JavaScript file linked back to your html file or in the of your html file, you would define the doSomething() function:
function doSomething(){
document.getElementsByClassName("gb")...
}
The document.getElementsByClassName() function is one way to select HTML elements from a page and modify it via JavaScript, I suggest checking out the very good JavaScript tutorials on W3Schools for more and better ways to do this, but this is the general principal. You would then modify the HTML element any way you need to.
Hope this helps!
You need to do that using JavaScript. I have attached a example for that.
$(".one").on('click', function() {
$(".two").css('color', 'red');
})
.one{
cursor: pointer;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<p class="one"> Change below text to RED </p>
<p class="two"> Black text </p>
There is a way to use a :focus state to change the look of parents, but it wouldn't be possible to differentiate between which click caused the parent to focus.
Here's a simple example using JavaScript and jQuery.
var helloEls = document.querySelectorAll('#jsTest .hh');
var goodbyeEls = document.querySelectorAll('#jsTest .gb');
helloEls.forEach(function(elem) {
elem.addEventListener("click", function() {
goodbyeEls.forEach(function(el) {
if (el.className==='gb active'){
el.className = 'gb';
} else {
el.className = 'gb active';
}
});
});
});
var gbEls = $('#jqueryTest .gb');
$('#jqueryTest .hh').click(function(){
if (gbEls.hasClass('active')){
gbEls.removeClass('active');
} else {
gbEls.addClass('active');
}
});
.gb.active {
color: green;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="jsTest">
<p class="hh">
Hello!
</p>
<p class="gb">
Goodbye!
</p>
</div>
<div id="jqueryTest">
<p class="hh">
Hello!
</p>
<p class="gb">
Goodbye!
</p>
</div>
So I'm working with Angular and I'm trying to make a button that when clicked disappears. I have tried to use [hidden], (click)="showHide = !showHide", and a bunch of other methods. Nothing is working so far.
My html (currently):
<div class="rows">
<div class="a-bunch-of-styles-for-my-button">
<a type="button" class="more-styles" (click)="inboundClick = !inboundClick" [routerLink]="['/inbound']" href="">
</a>
</div>
</div>
and my component:
export class AppComponent {
inboundClick = false;
}
In essence I have 2 buttons on a page and when one button is clicked I want to hide both buttons and display a set of new buttons.
I'm very new to Angular and I'm very confused why this won't work.
Your HTML
<div class="yourCssClass" *ngIf="this.isButtonVisible" (click)="this.isButtonVisible = false">
...
</div>
Your TypeScript
export class AppComponent {
private isButtonVisible = true;
}
This should do the job. *ngIf automatically hides the element, if the condition evaluates false, so setting the variable to false is sufficient.
The problem I see here is, that you don't control the visibility at any point. Using [ngClass] to add a specific class, if a condition is met, or *ngIf is helpful, whenever you try to change elements on user interaction.
For more information on [ngClass], you can read about its usage here: https://angular.io/api/common/NgClass
You can read about *ngIf here: https://angular.io/api/common/NgIf
Especially the "Common Use" part should be interesting for you.
Edit:
Reading your comment below it seems you did not notice what [hidden] and (click) actually do. [hidden] controls the visibility of the element, usually dependent on a certain condition. (click) however is a quick way to bind a Click-Event to your element.
Using both of those tools enables to hide an element, by changing a variable, if a user clicks on your element (the new value of the variable may be assigned by a function called by (click) or inline, as demonstrated in the example code).
Edit2: Yep, you meant Angular2/4 ;) So this should do the job.
Here is how you can achieve that:
In your component.html:
<a type="button" class="more-styles"
[hidden]="!inboundClick"
(click)="inboundClick = !inboundClick"
[routerLink]="['/inbound']" href="">
</a>
<a type="button" class="more-styles"
[hidden]="!outboundClick "
(click)="outboundClick = !outboundClick "
[routerLink]="['/outbound']" href="">
</a>
... and in your AppComponent:
export class AppComponent {
inboundClick = true;
outboundClick = true;
}
PLUNKER DEMO
Here is a neat way to hide/remove items, specially handy if there is a list of items.
Note how it takes advantage of Angular's template variables (#ListItem).
So your template can either be something like:
<a type="button" #ButtonA
(click)="onClick(ButtonA)"
[routerLink]="['/inbound']" href="">
</a>
<a type="button" #ButtonB
(click)="onClick(ButtonB)"
[routerLink]="['/outbound']" href="">
</a>
Or like this:
<ng-container *ngFor="let item of list">
<div #ListItem>
<button (click)="onClick(ListItem)">
</div>
</ng-container>
Depending on how you want to hide - if you want to remove it from DOM, or just hide it with CSS. And depending if you want to toggle it or just remove it completely. There are a few options:
Remove element from DOM (no way to get it back):
close(e: HTMLElement) {
e.remove();
}
Hiding it with the hidden attribute - beware that the hidden attribute can be overriden by CSS, it will happen if you are changing the display property and the rule has more precedence:
close(e: HTMLElement) {
e.toggleAttribute('hidden');
}
Hiding it "manually" with CSS:
close(e: HTMLElement) {
e.classList.toggle('hide-element');
}
.hide-element {
display: none;
}