Javascript Learning Notes (or basic important AH!!!) ）

1. Sort multiple-digit values by a value

       //as a worthwhile function    vardata = [{name: "Lisi", Age:12},{name: "Xiaoming", age:22}]        functionComparison (name) {return function(obj1,obj2) {varVal1 = Obj1[name];//gets the value of the given property            varVal2 =Obj2[name]; if(Val1 <val2) {                return-1; }Else if(Val1 >val2) {                return1; }Else{                return0; }}} arr.sort (Comparison ("Name"));//called    

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2. Function Internal properties: arguments and this

    // arguments The main purpose is to save the function arguments, but it also has a callee property, This property is a pointer to the function that owns the arguments object.  Example:  function   factorial (num) { if  (num <= 1 return  1;  else  { return  num * Arguments.callee (num-1 //  Span style= "COLOR: #008000" >// ***************************// // this refers to the Environment object--this value of the function execution  

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Javascript Learning Notes (or basic important AH!!!) ）