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?
4 Answers
Use Array.fill.
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)
Comments
use .map method to remove content and return the empty string.
array = ['xx', 'xxxxxxxx', 'xxx'];
const newArray = array.map(data=> (""));
console.log(newArray)
Comments
array = array.map(function(item){return '';});
1 Comment
Tyler2P
Your answer could be improved by adding more information on what the code does and how it helps the OP.
Use .map() method for immutability of original array.
let array = ['xx', 'xxxxxxxx', 'xxx'];
const emptyArr = array.map((item)=>"");
console.log(emptyArr);
array.map(() => '')simple