add leading zeros to number javascript

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Michele
15 Jan 2018
1const number = 5;
2console.log(number.toString().padStart(2, '0')); // expected output: "05"
source
Euen
20 Nov 2018
1function padLeadingZeros(num, size) {
2    var s = num+"";
3    while (s.length < size) s = "0" + s;
4    return s;
5}
6padLeadingZeros(57, 3);// "057"
7padLeadingZeros(57, 4); //"0057"
Augustine
11 Apr 2020
1('0' + 11).slice(-2) // '11'
2('0' + 4).slice(-2)  // '04'
Rafael
09 Mar 2016
1const str1 = '5';
2console.log(str1.padStart(2, '0')); // expected output: "05"
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