When executing lengthy 'for' statements, don't make the engine work any harder than it must.
— Devesh (@Deveshb15) June 16, 2021
It is highly inefficient to traverse the DOM to find the 'container'.
That's the reason you must always declare a variable outside the 'for' loop! pic.twitter.com/kArmUVSV78
JavaScript Tip\U0001f530
— Devesh (@Deveshb15) May 10, 2021
Copy to Clipboard button in JavaScript!\xa9 pic.twitter.com/VLgM8C99ER
Use splice instead of using delete to delete an item from an array. Using delete replaces the item with undefined instead of removing it from the array.
— Devesh (@Deveshb15) July 2, 2021
The delete method should be used to delete an object property. pic.twitter.com/ntMLWNVVFN
Create an array of unique values in JavaScript i.e. remove duplicates\U0001f530
— Devesh (@Deveshb15) May 31, 2021
We can create a new array containing only the unique values by using the Set object with the Spread operator. pic.twitter.com/3epttOha44
Global variables and function names are an incredibly bad idea. The reason is that every JavaScript file included in the page runs in the same scope. pic.twitter.com/SNnK0mC2e7
— Devesh (@Deveshb15) June 25, 2021
Short circuit Conditionals in JavaScript\U0001f530 pic.twitter.com/F4jnGhNdWS
— Devesh (@Deveshb15) May 26, 2021
Quick rounding in JavaScript\U0001f530
— Devesh (@Deveshb15) June 3, 2021
If you want to convert a float to an integer, you can use Math.floor() , Math.ceil() or Math.round() . But there is also a faster way using |, the bitwise \u2018or\u2019 operator. pic.twitter.com/MuxWajoj5y
Javascript tip\U0001f4a1
— Devesh (@Deveshb15) February 9, 2021
The toLocaleDateString() method returns a Date object as a string using local conventions. It also takes in an option parameter that can be used to change the format of the Date. #DEVCommunity #CodeNewbie pic.twitter.com/OlGgOkA062
Comparing three numbers in JavaScript\U0001f530 pic.twitter.com/UivLaS34YF
— Devesh (@Deveshb15) June 7, 2021
Dynamic Property names in JavaScript\U0001f530
— Devesh (@Deveshb15) May 28, 2021
You can assign a dynamic property before declaring the object. pic.twitter.com/2s5lmZW8MR
Did you know that NaN("not a number") is a number in JavaScript!\U0001f92f
— Devesh (@Deveshb15) June 14, 2021
Moreover, NaN is not considered equal to itself!
Does your head hurt yet?
In fact, NaN is not equal to anything. The only way to confirm that something is NaN is via the function isNaN(). pic.twitter.com/YeFn2uKCRz
Javascript Tip\U0001f4a1\U0001f447
— Devesh (@Deveshb15) January 29, 2021
How to not push your node_modules on Git\U0001f4a8
Explanation below\U0001f447#DEVCommunity #CodeNewbie https://t.co/Nz2zVosmZG pic.twitter.com/5Muvz6queR
Testing in JavaScript\U0001f530
— Devesh (@Deveshb15) June 17, 2021
Unit test
- Tests individual function or class. These are the easiest to implement. pic.twitter.com/zIQyJ9jGCA
