A, JavaScript hex conversion
toString () method to convert a Number object as a string, and returns the result.
Syntax: NumberObject.toString (radix)
When the parameter is 2, it NumberObject be converted to a string of binary valued
Parameter is 16, NumberObject is converted to a hexadecimal representation of the string value
(A) decimal to binary
the var 'aa = + 4 ; the console.log (aatoString ( 2 )) the var 'aa = 255 ; the console.log (aatoString ( 2))
(Two) decimal to hexadecimal
the var 'aa = 255 the console.log (aatoString ( 16))
Two, Unicode code conversion
the fromCharCode () accepts a specified Unicode value, and then returns a string
Syntax: String.fromCharCode ( N1 , n2 , ..., nX )
n1, n2, ..., nX represents Unicode encoding one or more characters
Return value: String Returns the character encoding of Unicode characters represent
(A) coded decimal output character Unicode
(B) the hexadecimal Unicode character encoding output
Note: ox hexadecimal
