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[Angular] Custom directive Form validator

Create a directive to check no special characters allowed: import {Directive, forwardRef} from '@angular/core'; import {AbstractControl, NG_VALIDATORS, Validator} from '@angular/forms'; @Directive({ selector: `[formControl][no-special-chars], [formCo…

[Angular] Using directive to create a simple Credit card validator

We will use 'HostListener' and 'HostBinding' to accomplish the task. The HTML: <label> Credit Card Number <input name="credit-card" type="text" credit-card placeholder="Enter your 16-digit card number"> </label…

[Angular 2] Directive intro and exportAs

First, What is directive, what is the difference between component and directive. For my understanding, component is something like 'canvas', 'form', 'table'... they have the template and their own functionality. It defines how a html tag should work…

Effective Java 75 Consider using a custom serialized form

Principle Do not accept the default serialized form without first considering whether it is appropriate.   The default serialized form is likely to be appropriate if an object's physical representation is identical to its logical content. @serial tag…

关于angular 自定义directive

关于angular 自定义directive的小结 首先我们创建一个名为"expander"的自定义directive指令: angular.module("myApp",[]).directive("expander",function(){ return{ //directive的一些属性(键值对形式)如下: /* restrict:'EA', replace:true, transclude:true, scope:{...}, templ…

[php基础]PHP Form表单验证:PHP form validator使用说明

在PHP网站开发建设中,用户注册.留言是必不可少的功能,用户提交的信息数据都是通过Form表单提交,为了保证数据的完整性.安全性,PHP Form表单验证是过滤数据的首要环节,PHP对表单提交数据的验证方式多种多样,早期一般使用Javascript对PHP表单进行验证,随着WEB2.0时代的到来,考虑到用户体验,使用Jquery Form表单验证插件是常用手法,今天我要介绍的是一个PHP表单验证类PHP form validator,其可应用于一般的PHP表单验证,也可以和第三方程序或Javas…

[Angular] Test Directive

directive: import { Directive, HostListener, HostBinding, ElementRef } from '@angular/core'; @Directive({ selector: '[credit-card]' }) export class CreditCardDirective { @HostBinding('style.border') border: string; @HostListener('input', ['$event'])…

[Angular] Export directive functionalities by using 'exportAs'

Directive ables to change component behaives and lookings. Directive can also export some APIs which enable behaivor changes control by outside directive iteslf. For example, we have an tooltip: It is a directive: import { Input, Directive, ElementRe…

[Angular] @ViewChild read custom directive and exportAs

For example we have a component: <Card ></Card> And a driective: <Card highlighted></Card> We want to get the driective instant inside the component code, we can use @ViewChild: @ViewChild(CardComponennt, {read: HighlightedDirectiv…

angular $http 与form表单的select-->refine

<!DOCTYPE html> <html ng-app="a2_15"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> <meta content="text/html;charset=utf-8" http-equiv="Content-Type"…