js_cheatsheet.md

Index

Basic

How to output

1. console.log() - Output in the developer console.

var a = 50;
console.log(a);

2. alert() - Output in the browser.

var a = 50;
alert(a);

How to take Input

prompt() function is used to take input.

var lastQuestion;
lastQuestion = prompt("How long the universe will last?: ");
console.log(lastQuestion);

Variables

Converting Between Values

1. From String To Number:

var strNum = "3.14";
var num = Number(strNum);
console.log(strNum);
console.log(num);

2. From Number to String:

var num = 2.72;
var strNum = String(num);
console.log(num);
console.log(strNum);

Working with Numbers

TODO

Conditional Statement