Analysis of Javascript string browser compatibility issues_javascript skills

This article analyzes Javascript string browser compatibility issues with examples. Share it with everyone for your reference. The specific analysis is as follows:

Let’s first look at the incompatible writing methods. If I want to get the number of a string

Copy code The code is as follows:

var str='aavvvcc';
console.info(str[0]);

This way of writing is not compatible with browsers below IE 7. The following provides a method that is fully compatible with browsers

Copy code The code is as follows:

var str='aavvvcc';
console.info(str.charAt(1));

Use charAt() to get a certain character in a string, and all are compatible.

I hope this article will be helpful to everyone’s JavaScript programming design.