JS Face question-2

//1. Intercepting Strings    varAA ="ABCD"; Console.log (Aa.substr (2,2)); varstr ="Qweda";    Console.log (Str.charat ()); //QConsole.log (Str.charat (0)); //QConsole.log (Str.charat (3)); //D//2. Determine the maximum number of characters in a string, and count the occurrences    varstr ="Asdfaass"; varJSON = {};//Create a Hold object     for(vari =0; i<str.length;i++) {//Traversing Strings        if(!json[str.charat (i)]) {//determine if there are no function elements inside the objectJson[str.charat (i)] =1;//true to assign a value of 1}Else{Json[str.charat (i)]++;//fslse +1 and (replace the original value)        }    }; Console.log (JSON)varIMax =0;//Initialize    varIIndex ="";  for(varIinchJSON) {        if(Json[i]>imax) {//Comparing maximum valuesIMax =Json[i]; IIndex=i; }    }    //Console.log (typeof (IMax) + "--" +typeof (IIndex));Console.log ("the most characters that appear are"+iindex+", the number of times is:"+IMax); //outerhtml    varOdiv = document.getElementById ("Test");    Console.log (odiv.outerhtml);    Console.log (odiv.innerhtml); //3, write a method to calculate the string    varstr ="AA you good"; Console.log (Getstrlen (str)+"Get") function Getstrlen (str) {varJSON ={len:0}; varreg =/[\u4e00-\u9fa5]/;//regular Chinese characters         for(vari =0; I < str.length;i++){            if(Reg.test (Str.charat (i))) {Json.len+=2;        } console.log (JSON);        }; returnjson.len+str.length; }//1. Intercepting Strings    varAA ="ABCD"; Console.log (Aa.substr (2,2)); varstr ="Qweda";    Console.log (Str.charat ()); //QConsole.log (Str.charat (0)); //QConsole.log (Str.charat (3)); //D//2. Determine the maximum number of characters in a string, and count the occurrences    varstr ="Asdfaass"; varJSON = {};//Create a Hold object     for(vari =0; i<str.length;i++) {//Traversing Strings        if(!json[str.charat (i)]) {//determine if there are no function elements inside the objectJson[str.charat (i)] =1;//true to assign a value of 1}Else{Json[str.charat (i)]++;//fslse +1 and (replace the original value)        }    }; Console.log (JSON)varIMax =0;//Initialize    varIIndex ="";  for(varIinchJSON) {        if(Json[i]>imax) {//Comparing maximum valuesIMax =Json[i]; IIndex=i; }    }    //Console.log (typeof (IMax) + "--" +typeof (IIndex));Console.log ("the most characters that appear are"+iindex+", the number of times is:"+IMax); //outerhtml    varOdiv = document.getElementById ("Test");    Console.log (odiv.outerhtml);    Console.log (odiv.innerhtml); //3, write a method to calculate the string    varstr ="AA you good"; Console.log (Getstrlen (str)+"Get") function Getstrlen (str) {varJSON ={len:0}; varreg =/[\u4e00-\u9fa5]/;//regular Chinese characters         for(vari =0; I < str.length;i++){            if(Reg.test (Str.charat (i))) {Json.len+=2;        } console.log (JSON);        }; returnjson.len+str.length; }

JS face question-2