Nodejs Number Format formatNum(n, x, s, c)

Here you can find the source of formatNum(n, x, s, c)

Method Source Code

/**//from ww  w.j av  a2 s.  c  o m
 * Number.prototype.format(n, x, s, c)
 *
 * @param n integer: length of decimal
 * @param x integer: length of whole part
 * @param s mixed: sections delimiter
 * @param c mixed: decimal delimiter
 */
Number.prototype.formatNum = function(n, x, s, c) {
    var re = '\\d(?=(\\d{' + (x || 3) + '})+' + (n > 0 ? '\\D' : '$') + ')',
        num = this.toFixed(Math.max(0, ~~n));
    return (c ? num.replace('.', c) : num).replace(new RegExp(re, 'g'), '$&' + (s || ','));
};

Related

  1. format(n, x, s, c)
    Number.prototype.format = function(n, x, s, c) {
      var re = '\\d(?=(\\d{' + (x || 3) + '})+' + (n > 0 ? '\\D' : '$') + ')',
        num = this.toFixed(Math.max(0, ~~n));
      return (c ? num.replace('.', c) : num).replace(new RegExp(re, 'g'), '$&' + (s || ','));
    };
    
  2. format(n, x, s, c)
    Number.prototype.format = function(n, x, s, c) {
      var re = '\\d(?=(\\d{' + (x || 3) + '})+' + (n > 0 ? '\\D' : '$') + ')',
          num = this.toFixed(Math.max(0, ~~n));
      return (c ? num.replace('.', c) : num).replace(new RegExp(re, 'g'), '$&' + (s || ','));
    };
    
  3. format(n, x, s, c)
    Number.prototype.format = function(n, x, s, c) {
        var re = '\\d(?=(\\d{' + (x || 3) + '})+' + (n > 0 ? '\\D' : '$') + ')'
            , num = this.toFixed(Math.max(0, ~~n));
        return (c ? num.replace('.', c) : num).replace(new RegExp(re, 'g'), '$&' + (s || ','));
    };
    
  4. format(n, x, s, c)
    Number.prototype.format = function(n, x, s, c) {
        if (arguments.length === 0) { n = 2; x = 3; s = ','; c = '.'; }
        var re = '\\d(?=(\\d{' + (x || 3) + '})+' + (n > 0 ? '\\D' : '$') + ')',
            num = this.toFixed(Math.max(0, Math.floor(n)));
        return (c ? num.replace('.', c) : num).replace(new RegExp(re, 'g'), '$&' + (s || ','));
    };
    
  5. format(n, x, unit)
    Number.prototype.format = function(n, x, unit) {
        var re = '\\d(?=(\\d{' + (x || 3) + '})+' + (n > 0 ? '\\,' : '$') + ')';
        var concatunit = "";
        if (unit != null){ concatunit = " "+unit; }
        return this.toFixed(Math.max(0, ~~n)).replace(new RegExp(re, 'g'), '$&.')+concatunit;
    
  6. formatNumber()
    Number.prototype.formatNumber = function() {
      var a = Math.abs(this).toString().split('');
      v = '';
      var n = 0;
      while (a.length > 0) {
        if (n>0 && n%3 == 0)
          v = '.' + v;
        v = a.pop() + v;
        n ++;
    ...
    
  7. formatNumber(c, d, t)
    Number.prototype.formatNumber = function(c, d, t){
      var n = this,
          c = isNaN(c = Math.abs(c)) ? 2 : c,
          d = d == undefined ? "." : d,
          t = t == undefined ? "," : t,
          s = n < 0 ? "-" : "",
          i = parseInt(n = Math.abs(+n || 0).toFixed(c)) + "",
          j = (j = i.length) > 3 ? j % 3 : 0;
         return s + (j ? i.substr(0, j) + t : "") + i.substr(j).replace(/(\d{3})(?=\d)/g, "$1" + t) + (c ? d + Math.abs(n - i).toFixed(c).slice(2) : "");
    ...
    
  8. formatNumber(c, d, t)
    Number.prototype.formatNumber = function(c, d, t) {
        var n = this, c = isNaN(c = Math.abs(c)) ? 2 : c, 
        d = d == undefined ? "," : d, 
        t = t == undefined ? "." : t, 
        s = n < 0 ? "-" : "", 
        i = parseInt(n = Math.abs(+n || 0).toFixed(c)) + "", 
        j = (j = i.length) > 3 ? j % 3 : 0;
        return s + (j ? i.substr(0, j) + t : "") + i.substr(j).replace(/(\d{3})(?=\d)/g, "$1" + t) + (c ? d + Math.abs(n - i).toFixed(c).slice(2) : "");
    
  9. format(thousandSep, decPoint)
    Number.THOUSAND_STEP = ",";
    Number.DECIMAL_POINT = ".";
    Number.prototype.format = function(thousandSep, decPoint) {
      var decimal, str;
      thousandSep = thousandSep || Number.THOUSAND_STEP;
      decPoint = decPoint || Number.DECIMAL_POINT;
      decimal = this.toString().split(".");
      str = Math.abs(this)
        .toFixed(0)
    ...