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This article mainly shows you "WeChat Mini Programs wxs how to use regular replacement string", the content is easy to understand, clear, hope to help you solve your doubts, the following let the editor lead you to study and learn "WeChat Mini Programs wxs how to use regular replacement string" this article.

What is wxs?

WeChat Mini Programs wxs WXS (WeiXin Script) is a set of Mini Program scripting language, combined with WXML, you can build the structure of the page.

WXS and JavaScript are different languages, have their own syntax, and are not consistent with JavaScript.

How to use regular expressions

How to use ordinary JS? here, using the RegExp object of JS, the g parameter is taken out.

String.replace (new RegExp (pattern,'g'), "b")

When you look at wxs, you need to use the getRegExp function to generate the regexp object. GetRegExp (pattern [, flags])

String.replace (getRegExp (pattern,'g'), "b")

There are other parameters besides g.

G: globali: ignoreCasem: multiline . For instance

For example, you need to replace-in 2019-10-06 23:34:41 with.

Ordinary JS

Var str = '2019-10-06 23:34:41 "; str.replace (new RegExp (' -','g'),'.)

Wxs

Str.replace (getRegExp ('-','g'),'.')

Output: 2019.10.06 23:36:45

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