Nodejs Utililty Methods Number Clamp

Number.prototype.clamp = function (min, max) {
  return this<min?min:this>max?max:this;
};

Number.prototype.clamp = function(min, max) {
  return Math.min(Math.max(this, min), max);
};
function calcAngle(x1, x2, y1, y2) {
  var calcAngle = Math.atan2(x1-x2,y1-y2)*(180/Math.PI);
  if(calcAngle < 0)
    calcAngle = Math.abs(calcAngle);
  else
    calcAngle = 360 - calcAngle;
...

'use strict';
Number.prototype.clamp = function(min, max) {
  return Math.min(Math.max(this, min), max);
};

Number.prototype.clamp = function(min, max) {
  return Math.min(Math.max(this, min), max);
};

Number.prototype.clamp = function(min, max) {
  return Math.min(Math.max(this, min), max);
};

window.rnd = function(p1, p2) {
        var r = Math.random();
        if (Array.isArray(p1)) {
            return p1[Math.floor(r * p1.length)];
        if (!(p1 === undefined)) {
            if (!(p2 === undefined)) {
                r = r * (p2 - p1) + p1;
            } else {
...

Number.prototype.clamp = function(min, max) {
  return Math.min(Math.max(this, min), max);
};
collides = function(a, b) {
    return a.x < b.x + b.width &&
      a.x + a.width > b.x &&
      a.y < b.y + b.height &&
      a.y + a.height > b.y;

Number.prototype.clamp = function(min, max)
  return Math.min(Math.max(this, min), max);
};
function sortNumber(a,b) {
    return a - b;
var sortObjectByKey = function(obj)
    var keys = [];
    var sorted_obj = {};
    for(var key in obj){
        if(obj.hasOwnProperty(key)){
            keys.push(key);
    keys.sort(sortNumber);
    jQuery.each(keys, function(i, key){
        sorted_obj[key] = obj[key];
    });
    return sorted_obj;
};
var pickRandomProperty = function(obj)
    var result;
    var count = 0;
    for (var prop in obj)
        if (Math.random() < 1/++count)
            result = prop;
    return result;

Number.prototype.clamp = function(min,max)
  var c = this;
  if(c < min)
    c = min;
  if(c > max)
    c = max;
  return Number(c);
};
...

Number.prototype.clamp = function(min,max)
  var c = this;
  if(c < min)
    c = min;
  if(c > max)
    c = max;
  return Number(c);
};
...