55 Must Know Built-In Javascript Methods and Operators

built-in.md

Object

• Object.keys

Function

• Function.prototype.call
• Function.prototype.apply
• Function.prototype.bind

String

• String.fromCharCode
• String.prototype.indexOf
• String.prototype.concat
• String.prototype.substring
• String.prototype.split
• String.prototype.toUpperCase
• String.prototype.toLowerCase
• String.prototype.charCodeAt
• String.prototype.match
• String.prototype.replace
• String.prototype.trim

Array

• Array.isArray
• Array.prototype.forEach
• Array.prototype.map
• Array.prototype.filter
• Array.prototype.reduce
• Array.prototype.reduceRight
• Array.prototype.every
• Array.prototype.some
• Array.prototype.indexOf
• Array.prototype.lastIndexOf
• Array.prototype.slice
• Array.prototype.concat
• Array.prototype.join
• Array.prototype.push
• Array.prototype.pop
• Array.prototype.shift
• Array.prototype.unshift
• Array.prototype.splice
• Array.prototype.reverse
• Array.prototype.sort

Operators

• Arithmetic Operators (+, -, *, /, %, ++, --)
• Assignment (=, +=, -=)
• Comparison (<, <=, >, >=, ===, !==)
• Logical (!, &&, ||)
• Conditional ? :