摘要：
We can use RegExp + replace to change Specific text into others we want. This picture shows the result after we exchange: Below is this project's code 阅读全文
摘要：
Function ： We can use regular expressions to check user input data formats. Homework： Check user input meets the requirements or not. I use regular ex 阅读全文
摘要：
Meaning: In browser , we exchange data using JavaScript code with user. We should know that most of these interactions are done by the document object 阅读全文