本文介绍了序号的正则表达式,例如12345或456789的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我需要防止在文本框中输入 5
个数字序号,例如 12345
, 45678
等.
I need to prevent entering 5
digit sequential numbers like 12345
, 45678
etc. in a text box.
我尝试使用以下正则表达式,但不起作用
I had tried with the following regular expression, but it is not working
var regex = /^\(?[0-9]{3}(\-|\)) ?[0-9]{3}-[0-9]{4}$/;
推荐答案
对于此类任务,最好使用基于非正则表达式的方法.您可以使用 indexOf
轻松地做到这一点.这些模式的正则表达式变得非常复杂且难以阅读.
It is better to use non regular expression based approach for this type of tasks. You can do this easily using indexOf
. Regular expressions for these patterns become really complicated and un-readable.
var pattern = '0123456789012345789' //to match circular sequence as well.
if (pattern.indexOf(input) == -1)
console.log('good input')
else
console.log('bad input')
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