Nodejs Utililty Methods Int Value Check

List of utility methods to do Int Value Check

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Description

The list of methods to do Int Value Check are organized into topic(s).

Method

isInt()
String.prototype.isInt = function() {
    if (this == "NaN")
        return false;
    return this == parseInt(this).toString();
isInteger()
String.prototype.isInteger = function() {
  return (/\d/g).test(this);
isInteger()
String.prototype.isInteger = function()
  return (/^[-\+]?\d+$/.test(this.Trim()));
isInteger(value, isString)
Number.isInteger = function isInteger(value, isString) {
    if (typeof value === "string" && isString) {
        if (value.match(/^[+-]?\d*\.?\d+(?:[eE][+-]?\d+)?$/)) {
            return Number.isInteger(parseFloat(value, 10));
    return typeof value === "number" && isFinite(value) && Math.floor(value) === value;
};