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This article mainly explains how WeChat Mini Programs uses the function directly in {{}}. Interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Next let the editor to take you to learn "WeChat Mini Programs in {{}} how to directly use the function" bar!

1. Use

¥{(money*0.03) .tofixed (2)} handling fee (rate 3%)

An error is reported and cannot be used directly, nor can a method in js be called.

two。 Solution

Since functions in js cannot be called in {{}}, what should I do? Wechat puts forward a new concept, WXS (WeiXin Script), a set of Mini Program scripting language that can call .wxs methods in {{}} of WXML.

Let's create a new .wxs file

/ / support es4 syntax var filter = {numberToFixed: function (value) {return value.toFixed (2)}} / / Export the exposed attribute module.exports = {numberToFixed: filter.numberToFixed}

Introduce files in .wxml:

Call the method in the .wxs module in {{}}:

¥{{filter.numberToFixed (money*0.03)}} handling fee (rate 3%)

At this point, I believe you have a deeper understanding of "how WeChat Mini Programs directly uses the function in {{}}". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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