Created
May 15, 2020 02:35
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| const exactLengthString = (input, length, filling) => { | |
| let newString = ''; | |
| for (var i = 1; i <= length / filling.length; i++) newString += filling; | |
| newString += input.toString() | |
| return newString.substring(newString.length - length, newString.length + length) | |
| } | |
| console.log(exactLengthString('100', 4, '0')) // 0100 | |
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