Invalid implementation method for setting name input in JavaScript, invalid javascript

Invalid implementation method for setting name input in JavaScript, invalid javascript

Html code:

<Tr> <th> input name: </th> <td> <input type = 'text' class = 'normal' name = 'name' pattern = 'required' alt = 'name' id = "checkText" onblur = "checkName () "/> <label> * special offer name </label> </td> </tr>

Set id and onblur event onblur in the form: this will occur when the object loses focus.

Javascript code:

Function checkName () {// obtain the Form ID var cashName = document. getElementById ("checkText"). value; // regular match var result = cashName. match (/['~! @ # $ % ^ & * () _ + <>? : "{},. \/; '[\]/Im); if (result! = Null) {document. getElementById ("checkText"). value = ""; alert ("the name cannot contain invalid characters! ");}}

The above section describes how to set invalid JavaScript name input. I hope it will be helpful to you. If you have any questions, please leave a message and I will reply to you in a timely manner. Thank you very much for your support for the help House website!