JS restricts the input box (all commonly used ones)_javascript skills

1. The text box can only enter numeric codes (decimal points cannot be entered)

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2. Only numbers can be entered, decimal points can be entered.

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3. Number and decimal point method two

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4. Only letters and Chinese characters can be entered

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5. Only English letters and numbers can be entered, Chinese cannot be entered

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6. Only numbers and English can be enteredchun

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7. There can only be up to two digits after the decimal point (numbers and Chinese can be entered). Letters and arithmetic symbols cannot be entered:

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8. There can only be up to two digits after the decimal point (numbers, letters, Chinese) (can be input), you can input operation symbols:

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//Only Chinese characters can be input:

//Only numbers can be entered:

//Only English and numbers can be entered:

//The control input box can only input text or numbers, or it does not allow the input of special characters
//The following characters are not allowed to be entered here: (like!@#$%^&*, etc.)

<br>//Only space input is prohibited<br>onkeyup="value=value.replace(/s/g,'')" <br>//Only Chinese and English can be input: <br>onkeyup="value=value.replace(/[^a-zA-Zu4E00-u9FA5]/g,'')" onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace( /[^a-zA-Zu4E00-u9FA5]/g,''))" <br>