4 examples of 'split number into digits javascript' in JavaScript

75
function splitDigits(digits = "") {
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    return digits.length === 6
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        ? `${digits.slice(0, 3)}${DIGIT_SEPARATOR}${digits.slice(3, 6)}`
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        : digits.length === 8
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        ? `${digits.slice(0, 4)}${DIGIT_SEPARATOR}${digits.slice(4, 8)}`
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        : digits;
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}

20
function toNumber(value, digits) {
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  var exponent = Math.pow(10, digits);
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  var pre = value.gsub(/[^-\.\d]/, '');
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  return Math.ceil(pre * exponent) / exponent;
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}

61
function groupDigits(num) {
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	var ret = "";
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	while (num.length > 3) {
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		ret = "." + num.slice(num.length - 3) + ret;
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		num = num.substring(0, num.length - 3);
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	}
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	ret = num + ret;
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	return ret;
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}

39
function parseToDigitsArray(str, base) {
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  var digits = str.split("");
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  var ary = [];
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  for (var i = digits.length - 1; i >= 0; i--) {
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    var n = parseInt(digits[i], base);
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    if (isNaN(n)) return null;
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    ary.push(n);
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  }
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  return ary;
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}