JavaScript微信小程序的相关内容

问答 2022-08-16 来自：开发者社区

微信小程序 js中遍历list

wxml 遍历用 wx:forJS方式一：for (var index in res.data) { title : res.data[index].title }res.data：数组index：下标title：数组中的一个字段方式二：for (var i = 0; i < datas.length; ++i) { console.log(i); console.log(d...

问答 2018-05-10 来自：开发者社区

在我们传统的Javascript开发函数编写中，我们习惯了回调函数的处理，不过随着回调函数的增多，以及异步处理的复杂性等原因，代码越来越难读，因此诞生了使用Promise来优化JS函数处理的需求，引入Promise确实能够很好的解决异步回调函数的可读性等问题，同时也使得我们调用的时候代码简洁一些，本文介绍如何在小程序的JS代码里面使用Promise来封装一些函数的做法。 1、小程序传统的回调处理....

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