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Leading zeros (Javascript)

mnakos | PRO | 11/17/16 08:40:38 AM UTC | 0 ⭐ | 317 👁️ | Never ⏰ | []
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function _leadingZeros(n, zero_count)
{
    if(n == null || n == undefined)
        return n;
    
    var nstr = n.toString();
    var n_int = parseInt(nstr);
    if(isNaN(n_int))
        return n;
    
    while(nstr.length < zero_count)
        nstr = "0" + nstr;
 
    return nstr; 
}

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