How to limit HTML input box to only pure numbers

This article will introduce to you how to limit the input input box to only pure numbers in HTML. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to everyone.

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

Using theonkeyupevent, there is abug, that is, in the Chinese input method state, enter directly after inputting Chinese characters , the letters

onchange = "value=value.replace(/[^\d]/g,'')"

will be input directly using theonchangeevent. After inputting the content, the result will only be obtained wheninputloses focus, and cannot be done while typing. The response

oninput = "value=value.replace(/[^\d]/g,'')"

uses theoninputevent, which perfectly solves the above two problems. There are no other problems in the test yet.

Code sample

     
  只能输入纯数字的输入框:  

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