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The ban on the entry of certain characters in the Input
GoblinaSDate: Tuesday, 2016-07-12, 12:51 PM | Message # 1
Group: S-Moderator
Messages: 380
3



The script below will help verify the correctness of the set in the field. This will limit the input of certain characters in the text entry field .Check symbols in a text entry field can be either at the input, and when a specific event . The script can use the registration fields , login form , etc. You can deny how certain characters or group of characters . For example , it is possible to completely ban entry of numbers , disallow space characters , tabs , prohibit Cyrillic or Latin .

Code
<input type="TEXT" onkeyup="var yratext=/['0-9',':']/; if(yratext.test(this.value)) alert('Enter the prohibited characters')">


Character Groups

  • '0-9' или '\d' - Numerical values
  • 'а-я' -Cyrillic lowercase letters
  • 'А-Я' - Cyrillic capital letters
  • 'А-я' - All the letters of the Cyrillic alphabet
  • 'a-z' - Latin lowercase letters ( first letter of the Latin )
  • 'A-Z' - The capital letters of the Latin alphabet ( the first letters of the Latin )
  • 'A-z' - All the letters of the Latin alphabet ( the first letters of the Latin )
  • 'A-я' - All letters ( first letter of the Latin )
  • '\w' - All letters, numbers and symbol "_"
  • '\s' - Space characters , tabs, and paragraph


That version of the code , which when you enter an incorrect character field is empty :


Code
<input type="text" onkeyup="var yratext=/['0-9',':']/; if(yratext.test(this.value)) this.value=''">


 
Message


The script below will help verify the correctness of the set in the field. This will limit the input of certain characters in the text entry field .Check symbols in a text entry field can be either at the input, and when a specific event . The script can use the registration fields , login form , etc. You can deny how certain characters or group of characters . For example , it is possible to completely ban entry of numbers , disallow space characters , tabs , prohibit Cyrillic or Latin .

Code
<input type="TEXT" onkeyup="var yratext=/['0-9',':']/; if(yratext.test(this.value)) alert('Enter the prohibited characters')">


Character Groups

  • '0-9' или '\d' - Numerical values
  • 'а-я' -Cyrillic lowercase letters
  • 'А-Я' - Cyrillic capital letters
  • 'А-я' - All the letters of the Cyrillic alphabet
  • 'a-z' - Latin lowercase letters ( first letter of the Latin )
  • 'A-Z' - The capital letters of the Latin alphabet ( the first letters of the Latin )
  • 'A-z' - All the letters of the Latin alphabet ( the first letters of the Latin )
  • 'A-я' - All letters ( first letter of the Latin )
  • '\w' - All letters, numbers and symbol "_"
  • '\s' - Space characters , tabs, and paragraph


That version of the code , which when you enter an incorrect character field is empty :


Code
<input type="text" onkeyup="var yratext=/['0-9',':']/; if(yratext.test(this.value)) this.value=''">

Author - GoblinaS
Date Added - 2016-07-12 в 12:51 PM
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