Awesome javascript one-liners to look like a pro

Awesome javascript one-liners to look like a pro

Awesome javascript one-liners to look like a pro. Learn some great one-liners to use on your next project. Javascript syntax and built-in methods allow us to cut down a lot of unnecessary lines in our code and write short, easily readable code.

Learn some great one-liners to use on your next project

Javascript syntax and built-in methods allow us to cut down a lot of unnecessary lines in our code and write short, easily readable code. In this post, we are taking this simplicity another step forward to see where you can write one-line solutions to some common use cases and problems you’d encounter in web development. Don’t hesitate to steal these 15 Javascript one-liners to write quick and simple code for your applications.

Reverse a String

You can reverse a string in one line using splitjoin, and reverse methods.

const stringReverse = str => str.split("").reverse().join("");

stringReverse("Welcome to Javascript")
//tpircsavaJ ot emocleW

Get the Average of an Array of Number

Javascript reducer allows calculating the average of a number of arrays in a single line.

const average = arr => arr.reduce((a, b) => a + b) / arr.length

average([21, 56, 23, 122, 67])
//57.8

Reduce method is quite useful when writing one-line solutions to a number of problems like finding the sum or maximum in an array of numbers.

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