Summary of js character type methods for controlling text box input_javascript skills

JS control text box can only input numbers

Copy code The code is as follows:

JS control text box can only input numbers and decimal points

Copy code The code is as follows:

Copy code The code is as follows:

JS control text box can only input English and numbers

Copy code The code is as follows:

JS control text box can only input Chinese

Copy code The code is as follows:

JS control text box can only input Chinese, English and numbers

Copy code The code is as follows:

The JS control text box can only input Chinese, English, numbers, and spaces

Copy code The code is as follows:

The JS control text box can only input Chinese, English, numbers, and decimal points

Copy code The code is as follows:

In summary:

First enter

in ‘’

onkeyup="value=value.replace(/[^X]/g,'')"

Then replace the X in (/[X]/g,'') with the code you want to enter,

Chinese u4E00-u9FA5, numbers 0-9, English a-zA-Z, other symbols @, dot or other symbols.

You can also have more than one, just separate them.

For example: Chinese and English numbers @symbol dot symbol a-zA-Z0-9u4E00-u9FA5@.

If you want to not be able to right-click the pop-up menu in the text box and paste the copied information

Just enter onpaste="return false" oncontextmenu="return false;" in ''