Detailed explanation of Angularjs filter filter
系统的学习了一下angularjs,发现angularjs的有些思想根php的模块smarty很像,例如数据绑定,filter。如果对smarty比较熟悉的话,学习angularjs会比较容易一点。这篇简单说一下angularjs的filter功能,angularjs的filter功能可分为二种,一种是内置的过滤器,一种是自定义的。
Filter是用来格式化数据用的。
Filter的基本原型( '' 类似于Linux中的管道模式):
{{ expression filter }}
Filter可以被链式使用(即连续使用多个filter):
{{ expression filter1 filter2 ... }}
Filter也可以指定多个参数:
{{ expression filter:argument1:argument2:... }}
一,内置的过滤器
1,uppercase,lowercase大小转换
{{ "lower cap string" | uppercase }} //结果:LOWER CAP STRING {{ "TANK is GOOD" | lowercase }} //结果:tank is good
|这里的竖线是一种管道功能,如果对linux比较熟悉的话,这块的|根linux的管道功能,基本是一样的
2,json格式化
{{ {foo: "bar", baz: 23} | json }} //结果:{ "foo": "bar", "baz": 23 }
注意:bza没格式前是没有双引号的,格式化后就转换成了json数据了。
3,date格式化
{{ 1304375948024 | date }} //结果:May 3, 2011 {{ 1304375948024 | date:"MM/dd/yyyy @ h:mma" }} //结果:05/03/2011 @ 6:39AM {{ 1304375948024 | date:"yyyy-MM-dd hh:mm:ss" }} //结果:2011-05-03 06:39:08
4,number格式化
{{ 1.234567 | number:1 }} //结果:1.2 {{ 1234567 | number }} //结果:1,234,567
5,currency货币格式化
{{ 250 | currency }} //结果:$250.00 {{ 250 | currency:"RMB ¥ " }} //结果:RMB ¥ 250.00
6,filter查找
{{ [{"age": 20,"id": 10,"name": "iphone"}, {"age": 12,"id": 11,"name": "sunm xing"}, {"age": 44,"id": 12,"name": "test abc"} ] | filter:'s'}} //查找含有有s的行 //上例结果:[{"age":12,"id":11,"name":"sunm xing"},{"age":44,"id":12,"name":"test abc"}] {{ [{"age": 20,"id": 10,"name": "iphone"}, {"age": 12,"id": 11,"name": "sunm xing"}, {"age": 44,"id": 12,"name": "test abc"} ] | filter:{'name':'iphone'} }} //查找name为iphone的行 //上例结果:[{"age":20,"id":10,"name":"iphone"}]
7,limitTo字符串,对像的截取
{{ "i love tank" | limitTo:6 }} //结果:i love {{ "i love tank" | limitTo:-4 }} //结果:tank {{ [{"age": 20,"id": 10,"name": "iphone"}, {"age": 12,"id": 11,"name": "sunm xing"}, {"age": 44,"id": 12,"name": "test abc"} ] | limitTo:1 }} //结果:[{"age":20,"id":10,"name":"iphone"}]
8,orderBy对像排序
{{ [{"age": 20,"id": 10,"name": "iphone"}, {"age": 12,"id": 11,"name": "sunm xing"}, {"age": 44,"id": 12,"name": "test abc"} ] | orderBy:'id':true }} //根id降序排 {{ [{"age": 20,"id": 10,"name": "iphone"}, {"age": 12,"id": 11,"name": "sunm xing"}, {"age": 44,"id": 12,"name": "test abc"} ] | orderBy:'id' }} //根据id升序排
二,自定filter功能
我找了一个基本angularjs的mvc框架,phonecat,自定义filter也是在这基础写的,这个框架挺好用的。
1,filters.js添加一个module
angular.module('tanktest', []).filter('tankreplace', function() { return function(input) { return input.replace(/tank/, "=====") }; });
2,app.js中加载这个module
var phonecatApp = angular.module('phonecatApp', [ 'ngRoute', 'phonecatControllers', 'facebookControllers', 'tanktest' ]);
3,html中调用
{{ "TANK is GOOD" | lowercase |tankreplace}} //结果:===== is good
注意:| lowercase |tankreplace管道命令可以有多个
以上所述是小编给大家介绍的angularjs filter过滤器相关知识,希望对大家有所帮助,更多有关angularjs filter相关知识敬请关注PHP中文网。谢谢!
更多详解Angularjs filter过滤器相关文章请关注PHP中文网!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

Frequently Asked Questions and Solutions for Front-end Thermal Paper Ticket Printing In Front-end Development, Ticket Printing is a common requirement. However, many developers are implementing...

JavaScript is the cornerstone of modern web development, and its main functions include event-driven programming, dynamic content generation and asynchronous programming. 1) Event-driven programming allows web pages to change dynamically according to user operations. 2) Dynamic content generation allows page content to be adjusted according to conditions. 3) Asynchronous programming ensures that the user interface is not blocked. JavaScript is widely used in web interaction, single-page application and server-side development, greatly improving the flexibility of user experience and cross-platform development.

There is no absolute salary for Python and JavaScript developers, depending on skills and industry needs. 1. Python may be paid more in data science and machine learning. 2. JavaScript has great demand in front-end and full-stack development, and its salary is also considerable. 3. Influencing factors include experience, geographical location, company size and specific skills.

How to merge array elements with the same ID into one object in JavaScript? When processing data, we often encounter the need to have the same ID...

Learning JavaScript is not difficult, but it is challenging. 1) Understand basic concepts such as variables, data types, functions, etc. 2) Master asynchronous programming and implement it through event loops. 3) Use DOM operations and Promise to handle asynchronous requests. 4) Avoid common mistakes and use debugging techniques. 5) Optimize performance and follow best practices.

Discussion on the realization of parallax scrolling and element animation effects in this article will explore how to achieve similar to Shiseido official website (https://www.shiseido.co.jp/sb/wonderland/)...

In-depth discussion of the root causes of the difference in console.log output. This article will analyze the differences in the output results of console.log function in a piece of code and explain the reasons behind it. �...

Explore the implementation of panel drag and drop adjustment function similar to VSCode in the front-end. In front-end development, how to implement VSCode similar to VSCode...
