JavaScript · Language basics

Arrow function

A concise function expression. It does not bind its own this or arguments.

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Syntax

(a, b) => a + b

Example

Try it

const add = (a, b) => a + b;
console.log(add(2, 3));
console.log([1, 2, 3].map(n => n * 2));

Use a normal function when you need dynamic this, such as object methods.

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