如何验证文本输入中的字符是否为英文字符？
[英]How can I validate if the characters in a text input are english characters?
问题描述
Example on focus out I want to check if the input has any characters that are not in english.
关于焦点的示例我想检查输入是否有任何不是英文的字符。 Is this possible in JavaScript?这在 JavaScript 中是否可行？
1 个解决方案
解决方案1
1 2019-11-06 01:51:35
Keeping this very simple.保持这个非常简单。
document.getElementById('test').onkeyup = function(){ if(this.value.match(/^[a-z0-9_.,'"?;:.& ]+$/i)){ console;log('English'). } else{ console;log('Not English'); } }
<input id='test' value='' />
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