Why does trigger infinitely for ngDoCheck and trackBy?
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0
down vote
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<a-scene> triggers ngDoCheck and trackBy when used in a template.
The use cases are simple:
component
ngDoCheck() { console.log('infinite spam'); }
trackByFn = (index: number, item: any): number => {
console.log('infinite spam');
return item['id'];
}
template
<a-scene>
<!-- empty -->
</a-scene>
Please help me understand this
javascript angular aframe
asked Nov 7 at 17:12
Dan
676323
add a comment |
up vote
0
down vote
favorite
<a-scene> triggers ngDoCheck and trackBy when used in a template.
The use cases are simple:
component
ngDoCheck() { console.log('infinite spam'); }
trackByFn = (index: number, item: any): number => {
console.log('infinite spam');
return item['id'];
}
template
<a-scene>
<!-- empty -->
</a-scene>
Please help me understand this
javascript angular aframe
asked Nov 7 at 17:12
Dan
676323
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
<a-scene> triggers ngDoCheck and trackBy when used in a template.
The use cases are simple:
component
ngDoCheck() { console.log('infinite spam'); }
trackByFn = (index: number, item: any): number => {
console.log('infinite spam');
return item['id'];
}
template
<a-scene>
<!-- empty -->
</a-scene>
Please help me understand this
javascript angular aframe
asked Nov 7 at 17:12
Dan
676323
<a-scene> triggers ngDoCheck and trackBy when used in a template.
The use cases are simple:
component
ngDoCheck() { console.log('infinite spam'); }
trackByFn = (index: number, item: any): number => {
console.log('infinite spam');
return item['id'];
}
template
<a-scene>
<!-- empty -->
</a-scene>
Please help me understand this
javascript angular aframe
javascript angular aframe
asked Nov 7 at 17:12
Dan
676323
asked Nov 7 at 17:12
Dan
676323
asked Nov 7 at 17:12
Dan
676323
asked Nov 7 at 17:12
Dan
676323
asked Nov 7 at 17:12
Dan
676323
676323
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
up vote
0
down vote
ngDoCheck() is triggered by Angular's change detection to identify if ngOnChanges() method has to be run and if the DOM needs to be refreshed.
Also as a part of Angular's change detection cycle, the ngDoCheck() method is run for all user events like click, key press, navigation etc.
answered Nov 7 at 17:32
Praveen Kumar
31619
refer to this link for more details on why it is triggered: blog.angularindepth.com/…
– Praveen Kumar
Nov 7 at 17:33
Why does it trigger when there are no under interactions? My assumption is that aframe is doing something in the background, so I am worried about the performance implications.
– Dan
Nov 7 at 17:44
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
0
down vote
ngDoCheck() is triggered by Angular's change detection to identify if ngOnChanges() method has to be run and if the DOM needs to be refreshed.
Also as a part of Angular's change detection cycle, the ngDoCheck() method is run for all user events like click, key press, navigation etc.
answered Nov 7 at 17:32
Praveen Kumar
31619
refer to this link for more details on why it is triggered: blog.angularindepth.com/…
– Praveen Kumar
Nov 7 at 17:33
Why does it trigger when there are no under interactions? My assumption is that aframe is doing something in the background, so I am worried about the performance implications.
– Dan
Nov 7 at 17:44
add a comment |
up vote
0
down vote
ngDoCheck() is triggered by Angular's change detection to identify if ngOnChanges() method has to be run and if the DOM needs to be refreshed.
Also as a part of Angular's change detection cycle, the ngDoCheck() method is run for all user events like click, key press, navigation etc.
answered Nov 7 at 17:32
Praveen Kumar
31619
refer to this link for more details on why it is triggered: blog.angularindepth.com/…
– Praveen Kumar
Nov 7 at 17:33
Why does it trigger when there are no under interactions? My assumption is that aframe is doing something in the background, so I am worried about the performance implications.
– Dan
Nov 7 at 17:44
add a comment |
up vote
0
down vote
up vote
0
down vote
ngDoCheck() is triggered by Angular's change detection to identify if ngOnChanges() method has to be run and if the DOM needs to be refreshed.
Also as a part of Angular's change detection cycle, the ngDoCheck() method is run for all user events like click, key press, navigation etc.
answered Nov 7 at 17:32
Praveen Kumar
31619
ngDoCheck() is triggered by Angular's change detection to identify if ngOnChanges() method has to be run and if the DOM needs to be refreshed.
Also as a part of Angular's change detection cycle, the ngDoCheck() method is run for all user events like click, key press, navigation etc.
answered Nov 7 at 17:32
Praveen Kumar
31619
answered Nov 7 at 17:32
Praveen Kumar
31619
answered Nov 7 at 17:32
Praveen Kumar
31619
answered Nov 7 at 17:32
Praveen Kumar
31619
31619
refer to this link for more details on why it is triggered: blog.angularindepth.com/…
– Praveen Kumar
Nov 7 at 17:33
Why does it trigger when there are no under interactions? My assumption is that aframe is doing something in the background, so I am worried about the performance implications.
– Dan
Nov 7 at 17:44
add a comment |
refer to this link for more details on why it is triggered: blog.angularindepth.com/…
– Praveen Kumar
Nov 7 at 17:33
Why does it trigger when there are no under interactions? My assumption is that aframe is doing something in the background, so I am worried about the performance implications.
– Dan
Nov 7 at 17:44
refer to this link for more details on why it is triggered: blog.angularindepth.com/…
– Praveen Kumar
Nov 7 at 17:33
refer to this link for more details on why it is triggered: blog.angularindepth.com/…
– Praveen Kumar
Nov 7 at 17:33
Why does it trigger when there are no under interactions? My assumption is that aframe is doing something in the background, so I am worried about the performance implications.
– Dan
Nov 7 at 17:44
Why does it trigger when there are no under interactions? My assumption is that aframe is doing something in the background, so I am worried about the performance implications.
– Dan
Nov 7 at 17:44
add a comment |
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