How to reset timer I've created in Angular on click? - html

Question

I'm creating a small app which keeps track of what activity I've done in a certain timespan once I write down said activity inside of an input field, once I click "OK" it should appear in a list.
I'm stuck on how I should proceed to reset the timer once I click the "OK" button, so basically what I should add inside the "resetTimer()" function which is supposed to trigger each time I add a task in a list.
HTML:
<div class="modalbox" [class.active]="modalboxActive">
<div class="modal">
<p>What did you do?</p>
<input type="text" [(ngModel)]="activity.name" />
<button (click)="addTask()" [disabled]="activity.name === ''">OK</button>
</div>
</div>
<div class="boxSuper">
<div class="boxLeft">
<div class="containerUp">
<button id="start" (click)="startTimer()">START</button>
<button id="pause" (click)="pauseTimer()">PAUSE</button>
<button id="stop" (click)="stopTimer()">STOP</button>
</div>
<div class="containerDown">
<p>{{ display }}</p>
</div>
</div>
<div class="boxRight">
<div class="containerLeft"></div>
<div class="containerRight">
<ul class="listElement" *ngFor="let item of tasks">
<li>
Activity:
<span>{{ item.name }}</span>
Length:
<span>{{ item.length }}</span>
</li>
</ul>
</div>
</div>
</div>
TS:
import { importExpr } from '#angular/compiler/src/output/output_ast';
import { Component, OnInit } from '#angular/core';
import { timer } from 'rxjs';
import { Activity } from '../activity';
import { Result } from '../result';
#Component({
selector: 'app-timer',
templateUrl: './timer.component.html',
styleUrls: ['./timer.component.css'],
})
export class TimerComponent implements OnInit {
ngOnInit() {}
time: number = 0;
display: string | undefined;
interval: any;
modalboxActive = false;
activity: Activity = {
name: '',
};
tasks: Result[] = [];
addTask() {
var el: Result = {
name: this.activity.name,
end: '',
start: '',
length: this.display,
};
this.tasks.push(el);
this.activity.name = '';
this.modalboxActive = false;
this.resetTimer();
}
resetTimer() {
console.log('reset');
}
startTimer() {
console.log('go');
this.interval = setInterval(() => {
if (this.time === 0) {
this.time++;
} else {
this.time++;
}
this.display = this.transform(this.time);
}, 1000);
}
transform(value: number): string {
var sec_num = value;
var hours = Math.floor(sec_num / 3600);
var minutes = Math.floor((sec_num - hours * 3600) / 60);
var seconds = sec_num - hours * 3600 - minutes * 60;
return hours + ':' + minutes + ':' + seconds;
}
pauseTimer() {
clearInterval(this.interval);
}
stopTimer() {
this.modalboxActive = true;
clearInterval(this.interval);
console.log('show');
}
}
Result interface:
export interface Result {
start: string | undefined;
end: string | undefined;
length: string | undefined;
name: string | undefined;
}

Answer 1

If you are trying to just reset it back to 0, all you would need to do is:
resetTimer(){
this.time = 0;
}