如何获得ON / OFF开关的值

Question

I have On/Off switcher in my web project :

HTML:

<div  class="onoffswitch">
   <input type="checkbox" name="onoffswitch" class="onoffswitch-checkbox" 
    id="myonoffswitch" checked>
   <label class="onoffswitch-label" for="myonoffswitch">
     <span #onoffswitch class="onoffswitch-inner"></span>
     <span class="onoffswitch-switch"></span>
   </label>
</div>

CSS:

.onoffswitch-inner:before {
    content: "ON";
    padding-left: 10px;
    background-color: #93297E; color: #FFFFFF;
}

.onoffswitch-inner:after {
    content: "OFF";
    padding-right: 10px;
    background-color: #EEEEEE; color: #999999;
    text-align: right;
}

I want to know if the switcher is turned ON or OFF, I tried to get the value, using the next code, but it does not work:

getSwitcherValue(onoffswitch) {
   console.log("onoffswitch:"+onoffswitch.style.content);
}

Do you have any ideas how to get the value of on/off switcher?

Answer 1

使用onoffswitch.checked代替onoffswitch.style.content

Answer 2

Change to:

    <div  class="onoffswitch">
   <input type="checkbox" name="onoffswitch" class="onoffswitch-checkbox" 
    id="myonoffswitch" [(ngModel)]="isChecked">
   <label class="onoffswitch-label" for="myonoffswitch">
     <span #onoffswitch class="onoffswitch-inner"></span>
     <span class="onoffswitch-switch"></span>
   </label>
</div>

And add isChecked into your ts file as a boolean.

Answer 3

You're using Angular. So use NgModel .

<div  class="onoffswitch">
   <input type="checkbox" [(ngModel)]="onOff" name="onoffswitch" class="onoffswitch-checkbox" 
    id="myonoffswitch" checked>
   <label class="onoffswitch-label" for="myonoffswitch">
     <span #onoffswitch class="onoffswitch-inner"></span>
     <span class="onoffswitch-switch"></span>
   </label>
</div>

And in your TS file:

public onOff = false;

You can now simply check this.onOff to see if your switch is "on" or not.

Answer 4

If you are using angular just use the its feature called two way binding

Ref : https://angular.io/api/forms/NgModel

for your problem solution:

https://stackblitz.com/edit/angular-wcaqhb

Answer 5

You Can try this solution

HTML file(eg app.component.html)

<div  class="onoffswitch">
   <input type="checkbox" name="onoffswitch" class="onoffswitch-checkbox" 
    id="myonoffswitch" [checked]="isSwitched"
  (change)="getSwitcherValue(isSwitched)">
   <label class="onoffswitch-label" for="myonoffswitch">
     <span #onoffswitch class="onoffswitch-inner"></span>
     <span class="onoffswitch-switch"></span>
   </label>
</div>

Ts File (app.component.ts)

import { Component } from '@angular/core';

@Component({
  selector: 'my-app',
  templateUrl: './app.component.html',
  styleUrls: [ './app.component.css' ]
})
export class AppComponent  {
  isSwitched:boolean=true;
  getSwitcherValue(onoffswitch) {
    this.isSwitched=!this.isSwitched;
   console.log("onoffswitch:"+this.isSwitched);
}
}

Css File(app.component.css)

.onoffswitch-inner:before {
    content: "ON";
    padding-left: 10px;
    background-color: #93297E; color: #FFFFFF;
}

.onoffswitch-inner:after {
    content: "OFF";
    padding-right: 10px;
    background-color: #EEEEEE; color: #999999;
    text-align: right;
}

Here is the Demo link for reference