屏蔽JavaScript变量值 [英] Mask javascript variable value

问题描述

我想屏蔽我的javascript变量值.基本上，我正在获取变量中的电话号码字段值，获取后，我想用其他格式将其屏蔽.

I want to mask my javascript variable value.Basically i am getting phone number fields value in variable and after getting it i want to mask it in some other format.

我尝试了 jquery Mask插件，但是它屏蔽了控件的字符串格式.但是我想将字符串屏蔽到变量中.

I have tried the jquery Mask plugin but its mask the control's string format.But i want to mask the string into the variable.

例如:

让我有一个电话字符串"0000000000" ，我将其存储在变量中:-

Let i have a phone string "0000000000" and i am storing it in a variable :-

var number ="0000000000"

之后，我想以其他格式将其遮盖.就像-

and after that i want to mask it in other formats.Like-

1)数字= number.mask('000-0000');2)数字= number.mask('[phone]');

1) number = number.mask('000-0000'); 2) number = number.mask('[phone]');

推荐答案

有一个类似的问题(

There is a similar question (Javascript phone mask for text field with regex).

您可以使用正则表达式(请参见 http://jsfiddle.net/BBeWN/45/):

You can do it using regular expressions (see the code working at http://jsfiddle.net/BBeWN/45/):

var value = '1234567';
var formatted = value.replace(/^(\d{3})(\d{4}).*/, '$1-$2');

请注意，在上面的示例中，用括号括起来的正则表达式的每个部分分别为(\ d {3})和(\ d {4})，然后可以分别使用 $ 1 和 $ 2 引用来构建格式化的文本字符串.

Notice that each part of the regular expression that is wrapped within parenthesis, (\d{3}) and (\d{4}) in the example above, can then be referenced to build the formatted text string using $1 and $2 respectively.

如果正则表达式的N个部分括在括号中，则可以引用它们以使用 $ 1 ， $ 2 、.来构建格式化的文本字符串..， $ N .

If you have N parts of the regular expression wrapped within parenthesis, you would be able to reference them to build a formatted text string with $1, $2, ..., $N respectively.

因此，对于您提到的其他格式([phone])，代码将如下所示:

So, for the other format you mention ([phone]), the code would be like this:

var formatted = value.replace(/^(\d{3})(\d{3})(\d{4}).*/, '($1) $2-$3');

您可以在 https:中找到出色的JavaScript正则表达式参考://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Guide/Regular_Expressions

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