ExtjsVType comes with several default verification methods

Today, I encountered a verification problem: I was told about Vtype in the rainy season. alpha // only letters can be entered. Other characters (such as numbers and special symbols) cannot be entered. 2. alphanum // only letters and numbers can be entered. email // For email verification, the required format is & quot; us... syntaxHighlig

Today, I encountered a verification problem: I was told about Vtype in the rainy season;

1. alpha // only letters can be entered, and other characters (such as numbers and special symbols) cannot be entered)
2. alphanum // only letters and numbers can be entered.
3. email // email verification, the required format is "usc@sina.com"
4. url // url format verification, required format is http://www.sina.com

Generally, we use FROMPEL to perform detection when submitting: improve it and verify that it passes the background method. Otherwise, no prompt is displayed.

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  The upper, lower, and left methods are provided: Write Regular Expressions directly.

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