A simple parameter verification class

When writing JS overload functions, we need to determine different input conditions.

However, we generally determine the number of parameters, but this is often not the case:

Function ABC (A, B, C)

A: String

B: Number

C: Boolean

Or

A: String

B: String

C: Number

In both cases, the number of parameters is 3, but the parameter type is completely different. How can we easily build an overloaded function?

 

Use my class:

Class Code (very short ):

var Param = {    varify: function (oParam, sParamType) {        var arrParam = sParamType.split(",");        if (arrParam.length == oParam.length) {            for (var nIndex = 0; nIndex < oParam.length; nIndex++) {                if (typeof oParam[nIndex] != String(arrParam[nIndex]).toLowerCase()) {                    return false;                }            }            return true;        } else {            return false;        }    }};

Application Case code:

function modify(s) {    switch (true) {        case Param.varify(arguments, "string,string,number"):            alert(arguments[0] + " " + arguments[1] + "=" + arguments[2].toString());            break;        case Param.varify(arguments, "string,string"):            alert("Fist Name:"+arguments[1] + "\nLast Name:" + arguments[0]);            break;        default:            alert("nothing");    }}modify("Michael", "Jackson");modify("Michael", "Jackson",5);modify("Michael", "Jackson","King Of Pop");

Run the sample code to experience the pleasure!