Javascript Chinese string processing additional considerations _javascript Tips

var strsex= "male";

In GB2312 encoding, suppose that another variable straxsex is a BSTR value that is read from an ActiveX control, and that the original value is "male", compared to the JavaScript program: Strsex==straxsex is False, which is "male"!= "male "。

However, if the expression Strsex==straxsex is true from VS2005 debugging, a closer look at Strsex.charcodeat (0) and straxsex.charcodeat (0) is also equal, and strsex.charcodeat ( 0) and Straxsex.charcodeat (0) are also equal to Nan.

Again notice VS2005 variable value hint, you can see strsex= "-". The character constants is not Unicode, causing the strsex to be assigned a different value than the "male" Unicode value. Try to save the JS file as a coded utf-8, run again, finally strsex==straxsex to True, the program runs in line with the debugger, and the day-to-day logic is consistent.