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I have a function that returns an interpolated string for example.
`This is my string $t(some.value)`
The issue I am facing is that t is returned after I get the interpolated string. For example
const mainFunction = (targetString) => {
const { t } = getTranslationService();
return targetString;
}
I want to resolve the value and return the processed string in the mainFunction. I tried with eval but it didn't work
The answer in case it is useful for someone else
My first assumption was wrong, the function t is async.
The second was it was more complex than I expected, I needed to create a locale folder with a file en-US.json since how it works and all these it is relying on i18n
Finally, the target string should be in the JSON file. the t function will call a key from the JSON file and the targetString (enclosed between curly braces) will be translated. All this works in an asynchronic way.
you can do:
`This is my string ${t(some.value)}`
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Template_literals
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guys I have this code which is written in Json as it is supposed to generate a document with repeated objects _id and items
I have used repeat function and passed a list to it with these objects , also i do not have clear understanding about what objectid do
'repeat(21, 0)': [ {_id :objectId()}
, items : items()} ]
but it is giving me this error SyntaxError: Unexpected token :
I am using this site https://next.json-generator.com
solved guys , you can find the code below
[
{
'repeat(21, 0)': {
_id: '{{objectId()}}',
items: '{{company().toUpperCase()}}',
}
}
]
it is a list with an object which contain a function repeating its containing objects
, please correct me if i am wrong or give more clarification.
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I'm a little confused about this.
I have a server returning a JSON string that represents an array of custom objects that I have defined. I need to perform some tests and check if each element of this array can be correctly cast/parsed to my object.
What is the correct way to do this?
I thought about creating a new Object and passing my JSON.parse(element) result to the constructor, but then how do I check if it was correctly created? Does it throw an exception?
Here is the simple way to check it:
checkJsonObject(string) {
try {
JSON.parse(string);
} catch (e) {
return false;
}
return true;
}
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I have to write a function that produces random(parameter) integers i have to write random output of this funtion into .txt file. Also i have to find max and min integers from this function (write them into .txt too)
I cant find any tutorial about this subject. Want to use "a+" as writer.
Firstly, please have a look online for tutorials on how to write to a file. There are loads of free resources online.
You have already done a lot of the work and only needed few more lines
import random
def createRandomNumberFile(min, max, count, outputFileName):
outputFile = open(outputFileName, 'a+')
for item in range(0, count):
randomNumber = random.randint(min,max)
outputFile.write(randomNumber)
outputFile.close
Explanation - As you have assigned the file using the 'a+' mode (appending mode) to a variable (outputFile) you can simply use this variable to write to the file and then later close file (closing the file isn't always necessary but is good practice).
Hope that helps
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I have the next JSON object
console.log:
Object {0: "/files/f6/bd/05/a9/medium/f6bd05a970c63b77eae164a607441818.jpeg",
1: "/files/ff/54/e3/17/medium/ff54e317d47631661eafeec6638ec530.jpeg",
2: "/files/b3/27/63/17/medium/b3276317020322ef77ac39447075286e.jpeg"}
And I need to remove element from this object by this string:
/files/f6/bd/05/a9/medium/f6bd05a970c63b77eae164a607441818.jpeg
I read a plenty of solutions for this question but all of them was about object with not numeric indexes. I use jQuery for it.
Please help me with function for my trouble. Thanks in advance.
Iterate through the object to find the value and delete the key once found:
// Assuming your object is called "foo":
for ( var k in foo ) {
if (foo.hasOwnProperty(k)) {
if (foo[k] === '/files/f6/bd/05/a9/medium/f6bd05a970c63b77eae164a607441818.jpeg') {
delete foo[k];
}
}
}
console.log(foo);
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I was wondering if there is one or more strings that cannot be losslessy compressed. More formally:
Let String be a string, f(var) a compression function which returns a compressed version of var, g(var) a decompression function such that g(f(var)) = var and strlen(var) a function which returns the length of var,
is there a valid value for String such that strlen(String) < strlen(f(String)) or strlen(String) = strlen(f(String))?
Theoretical answers are welcome, as well as examples in different languages and with different compression algorithms.
The pigeonhole principle tells us that for any given compression function*, there must always be at least one input string that will be expanded.
* i.e. a function that genuinely compresses at least one input string.
I would expect that this string would fit the bill: ""
Yes and for a simple reason: take for example a function that is garanty to return a losslessy compressed string that will be at least one bit less for any input string. Is such a function exists, then by reapplying this same function to its previous result over and over again, we are garanty to compress any string at least one bit further successively for each pass and therefore, we are garanty to be able to compress losslessy any string of any length down to a single bit every time.
Obviously, this is false (some initial strings could give such a final result and it's easy to find about them be applying the decompression algorithm to a compressed string of one bit in length but this result cannot be extended to all uncompressed strings) and therefore, such a function cannot exists; which means that for any compression algorithm, there exists at least one uncompressable string.