javascript 用javascript替换非数字字符？
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replace nonNumeric characters with javascript?
提问by PsyGnosis
I use this regular expression phone validation
我使用这个正则表达式电话验证
but when anybody enters any special characters *-/()-_in the input.. (except +) I want to replace this characters with ""(none).
How can I do that?
但是当有人*-/()-_在输入中输入任何特殊字符时..（除了+）我想用“”（无）替换这些字符。我怎样才能做到这一点？
var phone = /^\+(90)[2-5]{1}[0-9]{9}$/;
回答by DavidJCobb
This will remove all non-numeric characters in a given string:
这将删除给定字符串中的所有非数字字符：
myString = myString.replace(/\D/g,"");
\Dmatches anything that isn't a number; \dmatches a number.
\D匹配任何不是数字的东西；\d匹配一个数字。
Misread the question. To remove all non-numeric characters except +, do:
误读了这个问题。要删除除 之外的所有非数字字符+，请执行以下操作：
myString = myString.replace(/[^\d\+]/g,"");
回答by bjornd
var input = document.getElementById('phone');
input.onkeypress = function(){
input.value = input.value.replace(/[^0-9+]/g, '');
}
