What is the `Array.prototype.toString` method in JavaScript?

Description : `toString` returns a string representation of an array.

Answer :

`Array.prototype.toString` returns a string representation of the array by concatenating its elements with commas. It does not modify the original array. 

const arr = [1, 2, 3];
console.log(arr.toString()); // '1,2,3'

`Array.prototype.toString` returns a string representation of the array by concatenating its elements with commas. It does not modify the original array. 

const arr = [1, 2, 3];
console.log(arr.toString()); // '1,2,3'

Category : Javascript

Created Date : 9/6/2024

Array.prototype.toString string convert

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What is the `Array.prototype.flat` method in JavaScript?

What is the `Array.prototype.flat` method in JavaScript?

More details

2024-09-06 last updatedFreeJavascript

`Array.prototype.flat` creates a new array with all sub-array elements concatenated into it recursively up to a specified depth. It can flatten nested arrays to a specified level. 

const arr = [1, [2, [3, [4]]]];
const flatArr = arr.flat(2);
console.log(flatArr); // [1, 2, 3, [4]]

`Array.prototype.flat` creates a new array with all sub-array elements concatenated into it recursively up to a specified depth. It can flatten nested arrays to a specified level. 

const arr = [1, [2, [3, [4]]]];
const flatArr = arr.flat(2);
console.log(flatArr); // [1, 2, 3, [4]]

`Array.prototype.flat` creates a new array with all sub-array elements concatenated into it recursively up to a specified depth. It can flatten nested arrays to a specified level. 

const arr = [1, [2, [3, [4]]]];
const flatArr = arr.flat(2);
console.log(flatArr); // [1, 2, 3, [4]]

`Array.prototype.flat` creates a new array with all sub-array elements concatenated into it recursively up to a specified depth. It can flatten nested arrays to a specified level. 

const arr = [1, [2, [3, [4]]]];
const flatArr = arr.flat(2);
console.log(flatArr); // [1, 2, 3, [4]]

What is the `String.prototype.bold` method in JavaScript?

What is the `String.prototype.bold` method in JavaScript?

More details

2024-09-06 last updatedFreeJavascript

`String.prototype.bold` returns a string wrapped in HTML `<b>` tags. Note that this method is deprecated and should not be used in modern applications. 

const str = 'hello';
const boldStr = str.bold();
console.log(boldStr); // '<b>hello</b>'

`String.prototype.bold` returns a string wrapped in HTML `<b>` tags. Note that this method is deprecated and should not be used in modern applications. 

const str = 'hello';
const boldStr = str.bold();
console.log(boldStr); // '<b>hello</b>'

`String.prototype.bold` returns a string wrapped in HTML `<b>` tags. Note that this method is deprecated and should not be used in modern applications. 

const str = 'hello';
const boldStr = str.bold();
console.log(boldStr); // '<b>hello</b>'

`String.prototype.bold` returns a string wrapped in HTML `<b>` tags. Note that this method is deprecated and should not be used in modern applications. 

const str = 'hello';
const boldStr = str.bold();
console.log(boldStr); // '<b>hello</b>'

What is the `Array.prototype.flat` method in JavaScript?

What is the `String.prototype.bold` method in JavaScript?