JS in string to int

when I was doing the project today, I encountered a problem that required converting a variable of type string to int. As usual, I wrote var i = Integer.parseint ("112"), but the console error says "' Integer ' is undefined". Later, only to know that the original JS string to int and Java is not the same, can not directly use Java in the JS. Change to var j = parseint ("one"); It's OK.

Note: Whether Java or JavaScript, the parseint method has two parameters, the first parameter is the object to be converted, the second parameter is the radix, can be 2, 8, 10, 16, the default is 10 binary processing. But in JavaScript , the number of 0 starts is considered to be 8 binary processing, and the number of 0x is considered to be processed with 16 binary.