includes.wxs

// includes.wxs
var includes = function (array, searchElement) {
  return !!~array.indexOf(searchElement)
}

module.exports = includes

使用

在wxml中

<wxs src="../../wxs/includes/includes.wxs" module="includes" />
<view>{{ includes([2, 4, 6, 8, 10], 2) }}</view>

在其它wxs模块中

<view>{{ isIncludesPage(targetPage) }}</view>
...
...

<wxs module="isIncludesPage">
  var includes = require("../../wxs/includes/includes.wxs");
  var isIncludesPage = function(targetPage) {
    var pages = ['waitingTravel', 'waitDriver', 'arriveDestination']  
    var result = includes(pages, targetPage)
    console.log(result)
    return result
  }

  module.exports = isIncludesPage;
</wxs>