string fill js code example
Example 1: JavaScript repeat character
var a="a";
var aaa=a.repeat(3);
Example 2: lpad javascript
str.padStart(targetLength [, padString])
Example 3: repeat js
repeatStr = (n, s) => s.repeat(n);
Example 4: javascript padstart
export function padStart(number, digits = 2, emptyDigit = 0) {
let length = 0;
let n = Math.abs(number);
let absoluteNumber = n;
do {
n /= 10;
length++;
} while (n >= 1);
const prefix = Array(Math.max((digits - length) + 1, 0)).join(emptyDigit);
return number < 0 ? `-${prefix}${absoluteNumber}` : prefix + number;
}
export default padStart;