Character Problems in JS (Conversion Between Binary/decimal/hexadecimal and ASCII code)

Var a = '20140901 ';
Alert (parseInt (a, 2); // convert 111 as a binary value. Ignore 60 (not binary) and convert from left to right only binary values.
Alert (parseInt (a, 16); // convert all
According to this method, it can be converted to any hexadecimal
Var a = '20140901 ';
Alert (parseInt (a, 10). toString (16); // convert a to a in hexadecimal notation, and then convert it to hexadecimal notation. It can also be other hexadecimal notation.
The following describes the ASCII code:
Function test (){
Var a = 'AB ';
Var c = a. charCodeAt (1); // return 98, that is, B's AscII code starting from 0.

Var char = String. fromCharCode (98); returns lowercase B
}
// Small example
Function test () {// output characters in the AscII code Extension Set
Var c = "";
For (var I = 1; I <65536; I ++ ){
If (I % 10) = 0 ){
C + = I + ': \ t' + String. fromCharCode (I) +' \ t' + '\ n';} else {
C + = I + ': \ t' + String. fromCharCode (I) +' \ T ';}
}
Document. getElementById ("abc"). innerText = c;
}
<Div id = 'abc'> </div>