JavaScript uses Number method to convert string to int_javascript technique

Copy code The code is as follows:

var str='1250' ;

alert( Number(str) ); //Get 1250

alert(parseInt(str)); //Get 1250

var str1='00100';

alert( Number (str1) ); //Get 100

alert(parseInt(str1)); //Get 64

It is found that the parseInt method will be used as a number starting with format'00' Convert binary to decimal, so it is recommended to use the Number method to convert string to int.