JS: Array.prototype

What is array.prototype

Purpose of Array.prototype is to provide methods and properties useful for all array objects

Properties

Value Properties

• JS: Array.prototype.length
• JS: Array.prototype.constructor

Function Properties

Get Set an element by index

• JS: Array.prototype.at ⭕
• JS: Array.prototype.with ⭕

Add, Remove

• JS: Array.prototype.pop
• JS: Array.prototype.push
• JS: Array.prototype.shift
• JS: Array.prototype.unshift

Add or Remove Subarray

• JS: Array.prototype.concat
• JS: Array.prototype.slice (extract)
• JS: Array.prototype.splice (remove and add at index)
• JS: Array.prototype.toSpliced ⭕

Sort, Reverse

• JS: Array.prototype.sort
• JS: Array.prototype.toSorted ⭕
• JS: Array.prototype.reverse
• JS: Array.prototype.toReversed ⭕

Loop operations

• JS: Array.prototype.forEach
• JS: Array.prototype.map

• JS: Array.prototype.flatMap
• JS: Array.prototype.filter
• JS: Array.prototype.reduce
• JS: Array.prototype.reduceRight

• JS: Array.prototype.fill
• JS: Array.prototype.copyWithin

• JS: Array.prototype.some
• JS: Array.prototype.every

• JS: Array.prototype.flat

Find element

• JS: Array.prototype.includes

• JS: Array.prototype.indexOf
• JS: Array.prototype.lastIndexOf

• JS: Array.prototype.find
• JS: Array.prototype.findIndex

• JS: Array.prototype.findLast
• JS: Array.prototype.findLastIndex

Convert to string

• JS: Array.prototype.join (to string)
• JS: Array.toString

Array Iterator

• JS: Array.prototype.entries
• JS: Array.prototype.keys
• JS: Array.prototype.values

Other

• Array.prototype.toLocaleString
• Array.prototype[Symbol.iterator] (same as Array.prototype.values)
• Array.prototype[Symbol.unscopables]