How to empty the strings in an array of strings, but keep the length of array-CodePudding

I have an array of strings in javaScript:

array = ['xx', 'xxxxxxxx', 'xxx'];

I want to reach this:

 array = ['', '', '']; //empty the strings but keep the length of array

What is the best way?

CodePudding user response：

array = ['xx', 'xxxxxxxx', 'xxx'];
array.fill('');
console.log(array)

If you need to create a new array, use the Array constructor combined with Array.fill:

array = ['xx', 'xxxxxxxx', 'xxx'];
const newArray = new Array(array.length);
newArray.fill('');
console.log(newArray)

CodePudding user response：

use .map method to remove content and return the empty string.

array = ['xx', 'xxxxxxxx', 'xxx'];
const newArray = array.map(data=> (""));
console.log(newArray)

CodePudding user response：

array = array.map(function(item){return '';});

CodePudding user response：

Use .map() method for immutability of original array.

let array = ['xx', 'xxxxxxxx', 'xxx'];

const emptyArr = array.map((item)=>"");

console.log(emptyArr);