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Edited on 2016 October

var value = 3 var arr = [1, 2, 3, 4, 5, 3] arr = arr.filter(function(item) { return item !== value }) console.log(arr) // [ 1, 2, 4, 5 ] 

let value = 3 let arr = [1, 2, 3, 4, 5, 3] arr = arr.filter(item => item !== value) console.log(arr) // [ 1, 2, 4, 5 ] 

An additional advantage of this method is that you can remove multiple items

let forDeletion = [2, 3, 5] let arr = [1, 2, 3, 4, 5, 3] arr = arr.filter(item => !forDeletion.includes(item)) // !!! Read below about array.includes(...) support !!! console.log(arr) // [ 1, 4 ] 

If the "This-Binding Syntax" proposal is ever accepted, you'll be able to do this:

// array-lib.js export function remove(...forDeletion) { return this.filter(item => !forDeletion.includes(item)) } // main.js import { remove } from './array-lib.js' let arr = [1, 2, 3, 4, 5, 3] // :: This-Binding Syntax Proposal // using "remove" function as "virtual method" // without extending Array.prototype arr = arr::remove(2, 3, 5) console.log(arr) // [ 1, 4 ] 

var value = 3 var arr = [1, 2, 3, 4, 5, 3] arr = arr.filter(function(item) { return item !== value }) console.log(arr) // [ 1, 2, 4, 5 ]

let value = 3 let arr = [1, 2, 3, 4, 5, 3] arr = arr.filter(item => item !== value) console.log(arr) // [ 1, 2, 4, 5 ]

An additional advantage of this method is that you can remove multiple items

let forDeletion = [2, 3, 5] let arr = [1, 2, 3, 4, 5, 3] arr = arr.filter(item => !forDeletion.includes(item)) // !!! Read below about array.includes(...) support !!! console.log(arr) // [ 1, 4 ]

If the "This-Binding Syntax" proposal is ever accepted, you'll be able to do this:

// array-lib.js export function remove(...forDeletion) { return this.filter(item => !forDeletion.includes(item)) } // main.js import { remove } from './array-lib.js' let arr = [1, 2, 3, 4, 5, 3] // :: This-Binding Syntax Proposal // using "remove" function as "virtual method" // without extending Array.prototype arr = arr::remove(2, 3, 5) console.log(arr) // [ 1, 4 ]

Be mindful though, creating a new array every time takes a big performance hit. If the list is very large (think 10k+ items) then consider using other methods.