string – JavaScript

How to check if a string contains text from an array of substrings in JavaScript?

Pretty straight forward. In javascript, I need to check if a string contains any substrings held in an array. Answer There’s nothing built-in that will do that for you, you’ll have to write a function for it. If you know the strings don’t contain any of the characters that are special in regular expressions, then you can cheat a bit, like this: …which creates a regular expression that’s a series of alternations for the substrings you’re looking for (e.g., one|two) and tests to see if there are matches for any of them, but if any of the substrings contains any

Valid Braces – CodeWars Challenge

There is a challenge on codewars that asks you to check whether a string of parentheses, brackets, and curly braces is valid. A string of braces is considered valid if all braces are matched with the correct brace. I.e. “()” is valid and “[(])” is not. “(){}[]” is valid and “[({})](]” is not. Etc. I’ve been able to create some logic to check for whether or not there are the right number of opening and closing braces. ATTEMPT: But I’ve not been able to come up with a way to check for whether or not the opening brace “closes” before

How to concat date string to another string using ‘=>’

I want to concat both the strings so that final output looks as below: 2020-08-01=>Incident is created I am doing string1.concat(string2) but it is not giving the desired output. Answer You can simply and the easiest way is to use concat and split()

Javascript use RegEXP to remove characters between (but not including) special characters

I have a string as follows: I’m trying to get rid of the characters between the backslashes. Wanted result: I know how to remove everything except characters between two special characters WITHOUT removing the special characters. Every answer on stack includes removing them too 🙁 Answer Put the backslashes in the replacement string. Note that you need to double them to get literal backslashes because backslash is an escape prefix in string literals. This result doesn’t match the result in your example, but that’s because it doesn’t match your description of what you want to do. I implemented the description.

How to store strings for translation in Vue project

I want to use two Languages in my application – so i want a dictionary like string file (kinda like in android development) where i simply store my strings with id’s and can access the strings easily by id perhaps with a parameter for my language. What kind of file is easy to parse in my vue components and is suitable for my use case? Answer You can use normal js file and exporting normal object containing the strings. However I highly recommended you to use vue-i18n instead. Install: npm install vue-i18n or if you are using Vue Cli, run:

Why does Javascript only type-cast for string concatenation on strings that are already assigned?

I noticed something strange when messing around with strings and numbers in a Javascript console. Doing this: “$99.9” += 0 causes SyntaxError: Invalid left-hand side in assignment. But if I assign the string to a variable, the behavior is different (and more in line with what we’ve come to expect/accept from Javascript) let str = “$99.9” str += 0 // => “$99.90” I’m familiar with what causes the behavior in the second example (and what causes so many other Javascripty things to happen), but the error in the first example surprised me. What is happening in the first example of

Copying contents of h1 element to clipboard?

So, I made a translator, and it isn’t very good. But anyway, it is working and I want to try and add something where you can copy the result. Is there a way to do this? Below is my code: Thanks in advance! I know there is a way to do this with inputs, but I’m not sure if it can be done with headings. Answer To copy text you could use: Replaced: document.getElementById(‘copyer’).innerHTML=”Copied”+copyText.value; into document.getElementById(‘copyer’).innerText=”Copied “+temp.value; temp.value is temporary data to copied to clipboard. After you’re done using temporary data don’t forget to remove temporary data by: document.body.removeChild(temp); Check

Dynamic way to hide divs vanilla javascript

Is there a more dynamic way to hide/show divs that are identical in structure with no identifiers? Click to show I’m some stuff http://jsfiddle.net/ba7yfmz6/29/ Answer Use this: JavaScript: Hopefully this helps!

Why does my test pass, even though it doesn’t meet my logic gate?

I’m working on telephone validator on FCC. For some reason this passes 5555555555. Why does my logic gate pass this number? For context, this isn’t my first attempt at this code. I’ve added multiple statements, nested if statements, and it still doesn’t catch it. Why does this evaluate to true? Here’s the code: Answer You need to restate the condition you’re comparing (|| ‘(‘ will always be true): This is due to the fact that && has a greater precedence than the || operator. So without the parenthesis, the ‘(‘ && str.length >= 10 part of the expression is evaluated

Search value in JSON and return to console

I am trying to search a value in a JSON file using a input field from the user through the browser. A sample JSON object from the array of objects looks like this: I have an event listener to wait for click from the user. After the user clicks the function will go to the api json site and retrieve all the data. Next I would like to search through that JSON data for what the user typed in. Example: user input: “Cannonball” expected output: 196 (buy_average) However I am unable to figure out how to search through the object