Is it possible in ES6 to set a variable inside of a try{} using const in strict mode? This fails to lint because configPath is defined out of scope. The only way this seems to work is by doing: Basically, is there any way to use const instead of let for this case? Answer Declaring a variable as const requires
Author: admin@master
How to check if a Javascript function is a constructor
I noticed not all the Javascript functions are constructors. Question 1: How do I check if a function is a constructor so that it can be called with new keyword? Question 2: When I create a function, is it possible to make it NOT a constructor? Answer A little bit of background: ECMAScript 6+ distinguishes be…
Can i open the cookies file and see what’s in that file?
I found a cookies file in the location “C:UsersAgniveshAppDataLocalGoogleChromeUser DataDefault”. I’m a little curious about the data in it. I only see unformatted text when I opened the file in notepad. Is there a way to open and see the contents of that file? Answer The most straight forwa…
Listen for jQuery Event With Vanilla JS
So I am trying to determine whether its possible to listen for events added with jQuery using vanilla JS. I found this question: Listen to jQuery event without jQuery which definitely answers it for version 1 of jQuery. How about version 3 however? I have a fiddle that I have put together to test out, but I a…
Focusing on nested contenteditable element
So, I have two contenteditable divs nested inside of another: Here is Fiddle. When it is focused, nested should be focused but using console.log(document.activeElement); it shows that the top is focused and it doesn’t recognize the nested div. In a case where content is being edited, I need to recognize…
TypeError: this.form._updateTreeValidity is not a function
I’m currently using Angular Forms version 2.0.0 and trying to make a contact us modal with a contact form inside. Immediately after the ContactComponent loads, I get: EXCEPTION: this.form._updateTreeValidity is not a function I’ve already seen some other stack posts suggesting that using FormGroup…
How to design a store in Vuex to handle clicks in nested, custom components?
I’m trying to design a store to manage the events of my Vuex application. This far, I have the following. I’m going to have a number of list items that are supposed to change the value of the data in the store when clicked. The design of the root component App and the menu bar Navigation is as fol…
require is not defined in Firebase?
I am trying to run a html file in Firebase staging environment. I have used Firebase npm package in the js code. But while running in the browser it throws error “require is not defined”. HTML Code: JS Code: Please suggest me some solution. Answer You need to setup a tool (such as webpack) to mana…
Chrome Extension – show dynamic text on mouse hover over extension icon
I’ve recently built a popup chrome extension(Popup Notes) It basically takes notes of whatever you type in popup. Now I want to show saved notes whenever I hover my mouse over the extension icon. Right now it shows the static default title on mouse hover. I know it’s possible because this extensio…
Inline eslint comment in JSX
I’m getting an error (eslint): Line 199 exceeds maximum line length of 120. (max-len) Why doesn’t this inline comment work? Answer eslint-disable-line and eslint-disable-next-line are only in inline comments. There is currently an open issue for this in eslint So you would have to write it as the …