Small program Notes

This article is purely summary notes, all from the network

Official Document: Https://mp.weixin.qq.com/debug/wxadoc/dev/index.html

First, common knowledge points

1. Framework consists of configuration (JSON), Logic layer (JS, API), view layer (WXML,WXSS, component)

2. Bubbling event: Touchstart touchmove touchcancel touchend tap Longtap; bind Event bindings do not prevent bubbling events from bubbling up, and catch event bindings can prevent bubbling events from bubbling up.

3, Event object:Type: Represents the types of events; TimeStamp: The number of milliseconds that the page opened to the triggering event; target: The source component that triggered the event [id,tagname,dataset{notation: To data- begin with, multiple words - are linked by hyphens and cannot have uppercase (uppercase is automatically converted to lowercase) as in the data-element-type end Event.target.dataset will turn the hyphen into hump elementType}]; currenttarget: The current component of the event binding; Touches: [Touch {PageX, Pagey,clientx, ClientY}]; Detail: Data that is carried by custom events

4 wx:key . The value is provided in two forms: a string (representing a property of item in the for Loop's array), *this (the item itself represented in the For loop)

Ii. details of the arrangement

1, common shortcut key: code formatting : shift+alt+f code line indentation : ctrl+[ on one line: alt+up up one line : Shift+alt+down Check cursor current line : Ctrl+i Select from cursor to end of line : Shift+end Select all matches : Ctrl+shift+l to Open or hide the emulator : Ctrl + M Close the current file : Ctrl + M

2, applet default home: App.json pages in the first page

3. Automatically generate default page: After adding the path element of new page in App.json pages, click CTRL + S to automatically generate the corresponding directory and file after saving

4, <block/> not a component, it is just a wrapper element, will not do any rendering in the page, only accept control properties

5.

Third, the road of pits

1.

Small program Notes