Example of Javascript prohibiting input of Chinese or English_javascript skills

This tutorial teaches you how to use Javascript to limit the input of English or limit the input of Chinese.

English input is prohibited:

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Use regular expressions to limit input to Chinese only:

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1. Use regular expressions to limit the input of only full-width characters:

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2. Use regular expressions to limit input to numbers:

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3. Use regular expressions to limit input to numbers and English only:

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