te')); return $arr; } /* 遍历用户所有主题 * @param $uid 用户ID * @param int $page 页数 * @param int $pagesize 每页记录条数 * @param bool $desc 排序方式 TRUE降序 FALSE升序 * @param string $key 返回的数组用那一列的值作为 key * @param array $col 查询哪些列 */ function thread_tid_find_by_uid($uid, $page = 1, $pagesize = 1000, $desc = TRUE, $key = 'tid', $col = array()) { if (empty($uid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('uid' => $uid), array('tid' => $orderby), $page, $pagesize, $key, $col); return $arr; } // 遍历栏目下tid 支持数组 $fid = array(1,2,3) function thread_tid_find_by_fid($fid, $page = 1, $pagesize = 1000, $desc = TRUE) { if (empty($fid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('fid' => $fid), array('tid' => $orderby), $page, $pagesize, 'tid', array('tid', 'verify_date')); return $arr; } function thread_tid_delete($tid) { if (empty($tid)) return FALSE; $r = thread_tid__delete(array('tid' => $tid)); return $r; } function thread_tid_count() { $n = thread_tid__count(); return $n; } // 统计用户主题数 大数量下严谨使用非主键统计 function thread_uid_count($uid) { $n = thread_tid__count(array('uid' => $uid)); return $n; } // 统计栏目主题数 大数量下严谨使用非主键统计 function thread_fid_count($fid) { $n = thread_tid__count(array('fid' => $fid)); return $n; } ?>javascript - Angular 5 remove specific DOM elements - Stack Overflow

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    javascript - Angular 5 remove specific DOM elements - Stack Overflow

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    I have a small issue that I can't figure out how to do. I am just learning Angular / Typescript and I can't figure out how I could remove some DOM elements. I have some auto generated content, that has specific CSS classes. Unfortunately The objects are generated somewhere else and I cannot configure them in any way so I cannot add any ngIf or anything else on that content, that would simplify my work... I just have to use them. What I want to achieve is something like this( jQuery version): 

    $("#button").click(function() {
    $('.fc-oss').toggle();
 });

    I have a toggle and I want to attach an event to it that when it's being activated, it hides/ shows all elements with that specific type from the view. I am trying to achieve this in angular without jQuery but with little success. Any ideas on how I might be able to achieve this ?

    I have a small issue that I can't figure out how to do. I am just learning Angular / Typescript and I can't figure out how I could remove some DOM elements. I have some auto generated content, that has specific CSS classes. Unfortunately The objects are generated somewhere else and I cannot configure them in any way so I cannot add any ngIf or anything else on that content, that would simplify my work... I just have to use them. What I want to achieve is something like this( jQuery version): 

    $("#button").click(function() {
    $('.fc-oss').toggle();
 });

    I have a toggle and I want to attach an event to it that when it's being activated, it hides/ shows all elements with that specific type from the view. I am trying to achieve this in angular without jQuery but with little success. Any ideas on how I might be able to achieve this ?

    • javascript
    • jquery
    • angular
    • typescript
    • angular5
    Share Improve this question edited Jun 25, 2018 at 8:55 Vlad N asked Jun 25, 2018 at 8:39 Vlad NVlad N 6512 gold badges10 silver badges22 bronze badges
    Add a ment  | 

    3 Answers 3

    Reset to default 4

    In Angular you can use direct access to DOCUMENT.

    import { Inject, Injectable } from '@angular/core';
import { DOCUMENT } from '@angular/platform-browser';

@Injectable()
export class MyService {
  constructor(@Inject(DOCUMENT) private document: any) {}
}

    Having this you can access your element and define some logic to it

    let element = this.document.getElementbyClassName('fc-oss');
element.style.display = element.style.display === 'none' ? 'block' : 'none';

    You can work with *ngIf="boleanVar", init it in your ts 'boleanVar = true' in your ts and add <br>< button (click)="boleanVar = !boleanVar"> Toggle visibility</button>

    You can use the ngif directive for that.

    @Component({
  selector: 'ng-if-simple',
  template: `
    <button (click)="show = !show">{{show ? 'hide' : 'show'}}</button>
    show = {{show}}
    <br>
    <div *ngIf="show">Text to show</div>
`
})
class NgIfSimple {
  show: boolean = true;
}

    According to the value of the variable show the div element will toggle view.

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