Small micro-channel learning program eight wxs

wxs is a micro-channel to create a scripting language, it has its own grammar, and javaScript are not consistent, which is the official description of the micro-channel wxs, but after the fact to know, you will this is not a new language, it's just one kind is too restrictive, run the js in webview in specific reasons can view this article .

Its syntax is consistent and es5 js's, const let statement is not allowed, specific knowledge wxs grammar

use

Defined and used on wxml

<! - defined and used in wxml ->
<Module1 WXS = "Data"> // definition module name 
  module.exports = {
    EXP1: "throws 1"
  }
</wxs>
<View> // used herein 
{} {} data.exp1
 </ View>

And the introduction of external use wxs

Wxs definition of a file, if the development does not have this option on the tool, create a new file directly into the suffix can wxs

//index1.wxs
var foo = "hello world from tools.wxs";
module.exports={
  foo:foo
}

  Used on wxml

<-! Module definition module name specified by src wxs address only accepts relative address ->
<Wxs module = "data" src = "./ index1.wxs" /> // import external wxs only define a single closing tag wxs
<view>
{{data.exp1}}
</view>

Scenes

Frequent user interaction, just change the style components (such as layout position) without changing the data content of the scene, such as sliding menu, index list, scroll gradients, a listing switching.

Purely logical calculations, such as text, date format,