Mixing
*ngFor to print only the first element of an array
0
i'm using this code:
<div *ngIf="gamedata.notOver" class="columns">
<div class="column has-text-centered" *ngFor="let board of boards; let i = index">
<table class="is-bordered" [style.opacity]="i == player ? 0.5 : 1">
<tr *ngFor="let row of board.tiles; let j = index">
<td *ngFor="let col of row; let k = index" (click)="boardListener($event)" [style.background-color]="col.used ? '' : 'transparent'" [class.win]="col.status == 'win'" [class.fail]="col.status !== 'win'" class="battleship-tile" id="t{{i}}{{j}}{{k}}">
{{ col.value == "1" ? (col.status == "hit" ? "💀" : "X") : (col.status == "miss" ? "⛶" : (col.status == "hit" ? "💀" : "🌊")) }}
</td>
</tr>
</table>
<hr>
</div>
</div>
to print the first element of an array of arrays that contains 2 elements, how can i choose to print the first or the second element without printing both of them? i need to do this since i have to put both of them in separate divs.
html angular
asked Nov 20 '18 at 11:40
Francesco FavaroFrancesco Favaro
63
|
show 1 more comment
0
i'm using this code:
<div *ngIf="gamedata.notOver" class="columns">
<div class="column has-text-centered" *ngFor="let board of boards; let i = index">
<table class="is-bordered" [style.opacity]="i == player ? 0.5 : 1">
<tr *ngFor="let row of board.tiles; let j = index">
<td *ngFor="let col of row; let k = index" (click)="boardListener($event)" [style.background-color]="col.used ? '' : 'transparent'" [class.win]="col.status == 'win'" [class.fail]="col.status !== 'win'" class="battleship-tile" id="t{{i}}{{j}}{{k}}">
{{ col.value == "1" ? (col.status == "hit" ? "💀" : "X") : (col.status == "miss" ? "⛶" : (col.status == "hit" ? "💀" : "🌊")) }}
</td>
</tr>
</table>
<hr>
</div>
</div>
to print the first element of an array of arrays that contains 2 elements, how can i choose to print the first or the second element without printing both of them? i need to do this since i have to put both of them in separate divs.
html angular
asked Nov 20 '18 at 11:40
Francesco FavaroFrancesco Favaro
63
1
Possible duplicate of splice element from ngFor angular2
– dince12
Nov 20 '18 at 11:41
(Don't code a game in angular since this framework se a virtual DOM).
– Jacopo Sciampi
Nov 20 '18 at 11:43
If you have only two items, why not separate it and don't treat it as an array ?
– trichetriche
Nov 20 '18 at 11:43
1
@JacopoSciampi out of context, you can code several games with Angular, as long as they're not the size of Skyrim ...
– trichetriche
Nov 20 '18 at 11:44
Out of context? for real? There are tons of reasons to not use jQuery directly with angular, and same goes for canvas and other native element.
– Jacopo Sciampi
Nov 20 '18 at 11:46
|
show 1 more comment
0
0
0
i'm using this code:
<div *ngIf="gamedata.notOver" class="columns">
<div class="column has-text-centered" *ngFor="let board of boards; let i = index">
<table class="is-bordered" [style.opacity]="i == player ? 0.5 : 1">
<tr *ngFor="let row of board.tiles; let j = index">
<td *ngFor="let col of row; let k = index" (click)="boardListener($event)" [style.background-color]="col.used ? '' : 'transparent'" [class.win]="col.status == 'win'" [class.fail]="col.status !== 'win'" class="battleship-tile" id="t{{i}}{{j}}{{k}}">
{{ col.value == "1" ? (col.status == "hit" ? "💀" : "X") : (col.status == "miss" ? "⛶" : (col.status == "hit" ? "💀" : "🌊")) }}
</td>
</tr>
</table>
<hr>
</div>
</div>
to print the first element of an array of arrays that contains 2 elements, how can i choose to print the first or the second element without printing both of them? i need to do this since i have to put both of them in separate divs.
html angular
asked Nov 20 '18 at 11:40
Francesco FavaroFrancesco Favaro
63
i'm using this code:
<div *ngIf="gamedata.notOver" class="columns">
<div class="column has-text-centered" *ngFor="let board of boards; let i = index">
<table class="is-bordered" [style.opacity]="i == player ? 0.5 : 1">
<tr *ngFor="let row of board.tiles; let j = index">
<td *ngFor="let col of row; let k = index" (click)="boardListener($event)" [style.background-color]="col.used ? '' : 'transparent'" [class.win]="col.status == 'win'" [class.fail]="col.status !== 'win'" class="battleship-tile" id="t{{i}}{{j}}{{k}}">
{{ col.value == "1" ? (col.status == "hit" ? "💀" : "X") : (col.status == "miss" ? "⛶" : (col.status == "hit" ? "💀" : "🌊")) }}
</td>
</tr>
</table>
<hr>
</div>
</div>
to print the first element of an array of arrays that contains 2 elements, how can i choose to print the first or the second element without printing both of them? i need to do this since i have to put both of them in separate divs.
html angular
html angular
asked Nov 20 '18 at 11:40
Francesco FavaroFrancesco Favaro
63
asked Nov 20 '18 at 11:40
Francesco FavaroFrancesco Favaro
63
edited Nov 20 '18 at 11:42
Francesco Favaro
asked Nov 20 '18 at 11:40
Francesco FavaroFrancesco Favaro
63
asked Nov 20 '18 at 11:40
Francesco FavaroFrancesco Favaro
63
asked Nov 20 '18 at 11:40
Francesco FavaroFrancesco Favaro
63
63
1
Possible duplicate of splice element from ngFor angular2
– dince12
Nov 20 '18 at 11:41
(Don't code a game in angular since this framework se a virtual DOM).
– Jacopo Sciampi
Nov 20 '18 at 11:43
If you have only two items, why not separate it and don't treat it as an array ?
– trichetriche
Nov 20 '18 at 11:43
1
@JacopoSciampi out of context, you can code several games with Angular, as long as they're not the size of Skyrim ...
– trichetriche
Nov 20 '18 at 11:44
Out of context? for real? There are tons of reasons to not use jQuery directly with angular, and same goes for canvas and other native element.
– Jacopo Sciampi
Nov 20 '18 at 11:46
|
show 1 more comment
1
Possible duplicate of splice element from ngFor angular2
– dince12
Nov 20 '18 at 11:41
(Don't code a game in angular since this framework se a virtual DOM).
– Jacopo Sciampi
Nov 20 '18 at 11:43
If you have only two items, why not separate it and don't treat it as an array ?
– trichetriche
Nov 20 '18 at 11:43
1
@JacopoSciampi out of context, you can code several games with Angular, as long as they're not the size of Skyrim ...
– trichetriche
Nov 20 '18 at 11:44
Out of context? for real? There are tons of reasons to not use jQuery directly with angular, and same goes for canvas and other native element.
– Jacopo Sciampi
Nov 20 '18 at 11:46
1
1
Possible duplicate of splice element from ngFor angular2
– dince12
Nov 20 '18 at 11:41
Possible duplicate of splice element from ngFor angular2
– dince12
Nov 20 '18 at 11:41
(Don't code a game in angular since this framework se a virtual DOM).
– Jacopo Sciampi
Nov 20 '18 at 11:43
(Don't code a game in angular since this framework se a virtual DOM).
– Jacopo Sciampi
Nov 20 '18 at 11:43
If you have only two items, why not separate it and don't treat it as an array ?
– trichetriche
Nov 20 '18 at 11:43
If you have only two items, why not separate it and don't treat it as an array ?
– trichetriche
Nov 20 '18 at 11:43
1
1
@JacopoSciampi out of context, you can code several games with Angular, as long as they're not the size of Skyrim ...
– trichetriche
Nov 20 '18 at 11:44
@JacopoSciampi out of context, you can code several games with Angular, as long as they're not the size of Skyrim ...
– trichetriche
Nov 20 '18 at 11:44
Out of context? for real? There are tons of reasons to not use jQuery directly with angular, and same goes for canvas and other native element.
– Jacopo Sciampi
Nov 20 '18 at 11:46
Out of context? for real? There are tons of reasons to not use jQuery directly with angular, and same goes for canvas and other native element.
– Jacopo Sciampi
Nov 20 '18 at 11:46
|
show 1 more comment
1 Answer
1
active
oldest
votes
0
I assume the line that refers to the array of arrays is the board of boards one.
Try wrapping each array in an ng-content that has an ngIf directive as follows:
<div class="column has-text-centered" *ngFor="let board of boards; let i = index">
<ng-content *ngIf="i%2 == 0">
INSERT WHAT YOU WANT TO DISPLAY FOR FIRST ARRAY ITEM HERE
</ng-content>
<ng-content *ngIf="i%2 != 0">
INSERT WHAT YOU WANT TO DISPLAY FOR SECOND ARRAY ITEM HERE
</ng-content>
</div>
You may have to repeat some code, but it should work.
answered Nov 20 '18 at 16:51
ChronusChronus
8911
add a comment |
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1 Answer
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1 Answer
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active
oldest
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0
I assume the line that refers to the array of arrays is the board of boards one.
Try wrapping each array in an ng-content that has an ngIf directive as follows:
<div class="column has-text-centered" *ngFor="let board of boards; let i = index">
<ng-content *ngIf="i%2 == 0">
INSERT WHAT YOU WANT TO DISPLAY FOR FIRST ARRAY ITEM HERE
</ng-content>
<ng-content *ngIf="i%2 != 0">
INSERT WHAT YOU WANT TO DISPLAY FOR SECOND ARRAY ITEM HERE
</ng-content>
</div>
You may have to repeat some code, but it should work.
answered Nov 20 '18 at 16:51
ChronusChronus
8911
add a comment |
0
I assume the line that refers to the array of arrays is the board of boards one.
Try wrapping each array in an ng-content that has an ngIf directive as follows:
<div class="column has-text-centered" *ngFor="let board of boards; let i = index">
<ng-content *ngIf="i%2 == 0">
INSERT WHAT YOU WANT TO DISPLAY FOR FIRST ARRAY ITEM HERE
</ng-content>
<ng-content *ngIf="i%2 != 0">
INSERT WHAT YOU WANT TO DISPLAY FOR SECOND ARRAY ITEM HERE
</ng-content>
</div>
You may have to repeat some code, but it should work.
answered Nov 20 '18 at 16:51
ChronusChronus
8911
add a comment |
0
0
0
I assume the line that refers to the array of arrays is the board of boards one.
Try wrapping each array in an ng-content that has an ngIf directive as follows:
<div class="column has-text-centered" *ngFor="let board of boards; let i = index">
<ng-content *ngIf="i%2 == 0">
INSERT WHAT YOU WANT TO DISPLAY FOR FIRST ARRAY ITEM HERE
</ng-content>
<ng-content *ngIf="i%2 != 0">
INSERT WHAT YOU WANT TO DISPLAY FOR SECOND ARRAY ITEM HERE
</ng-content>
</div>
You may have to repeat some code, but it should work.
answered Nov 20 '18 at 16:51
ChronusChronus
8911
I assume the line that refers to the array of arrays is the board of boards one.
Try wrapping each array in an ng-content that has an ngIf directive as follows:
<div class="column has-text-centered" *ngFor="let board of boards; let i = index">
<ng-content *ngIf="i%2 == 0">
INSERT WHAT YOU WANT TO DISPLAY FOR FIRST ARRAY ITEM HERE
</ng-content>
<ng-content *ngIf="i%2 != 0">
INSERT WHAT YOU WANT TO DISPLAY FOR SECOND ARRAY ITEM HERE
</ng-content>
</div>
You may have to repeat some code, but it should work.
answered Nov 20 '18 at 16:51
ChronusChronus
8911
answered Nov 20 '18 at 16:51
ChronusChronus
8911
answered Nov 20 '18 at 16:51
ChronusChronus
8911
answered Nov 20 '18 at 16:51
ChronusChronus
8911
8911
add a comment |
add a comment |
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1
Possible duplicate of splice element from ngFor angular2
– dince12
Nov 20 '18 at 11:41
(Don't code a game in angular since this framework se a virtual DOM).
– Jacopo Sciampi
Nov 20 '18 at 11:43
If you have only two items, why not separate it and don't treat it as an array ?
– trichetriche
Nov 20 '18 at 11:43
1
@JacopoSciampi out of context, you can code several games with Angular, as long as they're not the size of Skyrim ...
– trichetriche
Nov 20 '18 at 11:44
Out of context? for real? There are tons of reasons to not use jQuery directly with angular, and same goes for canvas and other native element.
– Jacopo Sciampi
Nov 20 '18 at 11:46