directive

问题 I'm trying to create blade directive which echo variable (if variable defined) or echo "no data" if variable undefined. This is my code in AppServiceProvider.php : <?php namespace App\Providers; use Blade; use Illuminate\Support\ServiceProvider; class AppServiceProvider extends ServiceProvider { /** * Bootstrap any application services. * * @return void */ public function boot() { Blade::directive('p', function($ex) { error_log(print_r($ex,true)); return '<?php $defined_vars = get_defined

问题 I'm trying to add the internationalization feature to my database. It would be quite difficult to maintain a schema graphql if I needed to duplicate all translatable fields type Quest { name @i18n # simple } type Quest { nameEn nameJa nameFr ... # omg } The problem I'm facing is that field directives are only executed during a query (or, once a mutation has finished, to return the result). I do not see how I could do something similar with resolvers. For any possible mutation, I want to check

来源： https://stackoverflow.com/questions/63604276/angularjs-unit-test-directive-how-can-i-pass-a-function-to-a-directive

问题 What i exactly need to know is what characters are allowed before the start of a directive as we all know we can have new line characters and whitespace characters before the start of a directive before ( # ) now i read the C standard about this and found out the following definition explaining this: A preprocessing directive consists of a sequence of preprocessing tokens that satisfies the following constraints: The first token in the sequence is a # preprocessing token that (at the start of

问题 I'm trying to convert every string input to null upon cahnge. So i create a directive to listen on every change and assign null to empty string. And here is the HTML <form [formGroup]="form" class="mt-4 p-2" (ngSubmit)="onSubmit()"> <input nbInput fullWidth fieldSize="small" shape="semi-round" formControlName="AuthorityNum" EmptyToNull> </form> Here is the directive code: import { Directive, Input, HostListener, ElementRef } from '@angular/core'; @Directive({ selector: '[EmptyToNull]' })

问题 I am developing an angular directive that converts dropdownlist to radioListbox. here is my initial code : import { Directive, Input, TemplateRef, ViewContainerRef,OnInit } from '@angular/core'; @Directive({ selector: '[radioList]' }) export class RadioListDirective implements OnInit { constructor(private templateRef: TemplateRef<any>, private vcRef: ViewContainerRef) { } ngOnInit() { console.log(this.templateRef); this.vcRef.createEmbeddedView(this.templateRef); } } and <div> test </div>

问题 I know that the .ascii directive doesn't put a null character at the end of the string. The .asciz directive is used for that purpose. However, I don't know whether the .string directive puts a null character at the end of the string. If it does, then what's the difference between the .asciz and the .string directives? To me, having both .ascii and .string seems redundant. 回答1: Just so this question no longer shows up in "Unanswered"... According to the binutils docs: .ascii (Here for

问题 I know that the .ascii directive doesn't put a null character at the end of the string. The .asciz directive is used for that purpose. However, I don't know whether the .string directive puts a null character at the end of the string. If it does, then what's the difference between the .asciz and the .string directives? To me, having both .ascii and .string seems redundant. 回答1: Just so this question no longer shows up in "Unanswered"... According to the binutils docs: .ascii (Here for

问题 I'm trying to define a pair of type aliases at the top of my C# program. This is a short example of what I'm trying to do: using System; using System.Collections.Generic; namespace Foo { using TsvEntry = Dictionary<string, string>; using Tsv = List<TsvEntry>; } When I try to compile this using mcs 3.2.8.0, I get the following error message: foo.cs(6,19): error CS0246: The type or namespace name `TsvEntry' could not be found. Are you missing an assembly reference? Is it possible to use using

问题 I'm trying to define a pair of type aliases at the top of my C# program. This is a short example of what I'm trying to do: using System; using System.Collections.Generic; namespace Foo { using TsvEntry = Dictionary<string, string>; using Tsv = List<TsvEntry>; } When I try to compile this using mcs 3.2.8.0, I get the following error message: foo.cs(6,19): error CS0246: The type or namespace name `TsvEntry' could not be found. Are you missing an assembly reference? Is it possible to use using