Under what conditions should arrow functions be utilized in ECMAScript 6

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I am facing an issue during my development. Can you tell me Under what conditions arrow functions should be utilized in ECMAScript 6? Use code if necessary.
Jan 9 in Java-Script by Ashutosh
• 14,020 points
27 views

1 answer to this question.

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Arrow functions in ECMAScript 6 should be utilized under the following conditions:

1. When this Binding is Needed:

Arrow functions inherit this from their surrounding lexical context, making them ideal for scenarios where maintaining the context is crucial.

Example:

class Example {

  constructor(name) {

    this.name = name;

  }

  printName() {

    setTimeout(() => {

      console.log(this.name); // 'this' refers to the class instance

    }, 1000);

  }

}

const ex = new Example('Edureka');

ex.printName(); // Output: Edureka

2. Shorter Syntax for Callbacks:

Arrow functions are useful for concise syntax in callback functions.

Example:

const numbers = [1, 2, 3];

const doubled = numbers.map(num => num * 2);

console.log(doubled); // Output: [2, 4, 6]

answered Jan 10 by Navya

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