Detailed explanation of Angularjs filter_AngularJS
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相关知识敬请关注脚本之家网站。谢谢!

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

AI Hentai Generator
Generate AI Hentai for free.

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



Detailed explanation of JavaScript string replacement method and FAQ This article will explore two ways to replace string characters in JavaScript: internal JavaScript code and internal HTML for web pages. Replace string inside JavaScript code The most direct way is to use the replace() method: str = str.replace("find","replace"); This method replaces only the first match. To replace all matches, use a regular expression and add the global flag g: str = str.replace(/fi

Article discusses creating, publishing, and maintaining JavaScript libraries, focusing on planning, development, testing, documentation, and promotion strategies.

The article discusses strategies for optimizing JavaScript performance in browsers, focusing on reducing execution time and minimizing impact on page load speed.

The article discusses effective JavaScript debugging using browser developer tools, focusing on setting breakpoints, using the console, and analyzing performance.

Bring matrix movie effects to your page! This is a cool jQuery plugin based on the famous movie "The Matrix". The plugin simulates the classic green character effects in the movie, and just select a picture and the plugin will convert it into a matrix-style picture filled with numeric characters. Come and try it, it's very interesting! How it works The plugin loads the image onto the canvas and reads the pixel and color values: data = ctx.getImageData(x, y, settings.grainSize, settings.grainSize).data The plugin cleverly reads the rectangular area of the picture and uses jQuery to calculate the average color of each area. Then, use

This article outlines ten simple steps to significantly boost your script's performance. These techniques are straightforward and applicable to all skill levels. Stay Updated: Utilize a package manager like NPM with a bundler such as Vite to ensure

This article will guide you to create a simple picture carousel using the jQuery library. We will use the bxSlider library, which is built on jQuery and provides many configuration options to set up the carousel. Nowadays, picture carousel has become a must-have feature on the website - one picture is better than a thousand words! After deciding to use the picture carousel, the next question is how to create it. First, you need to collect high-quality, high-resolution pictures. Next, you need to create a picture carousel using HTML and some JavaScript code. There are many libraries on the web that can help you create carousels in different ways. We will use the open source bxSlider library. The bxSlider library supports responsive design, so the carousel built with this library can be adapted to any

Key Points Enhanced structured tagging with JavaScript can significantly improve the accessibility and maintainability of web page content while reducing file size. JavaScript can be effectively used to dynamically add functionality to HTML elements, such as using the cite attribute to automatically insert reference links into block references. Integrating JavaScript with structured tags allows you to create dynamic user interfaces, such as tab panels that do not require page refresh. It is crucial to ensure that JavaScript enhancements do not hinder the basic functionality of web pages; even if JavaScript is disabled, the page should remain functional. Advanced JavaScript technology can be used (
