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I am trying to get started on angular development. And after reviewing the documentation some questions persist. How do i best write a ng-if with multiple arguments corresponding to
if( a && b) or if( a || b )
218
We can use multiple conditions in *ngIf with logical operator AND (&&) to decide the trustworthy of *ngIf expression. If all conditions are true, then element will be added to the DOM.
On the div tag we added the ngIf directive that would be displayed if the value of toggleOn is false. After that, we added some dummy paragraphs. This is how to use the ngIf directive. It can be used in all types of use cases and comparisons you can think of in your component template.
It is possible.
<span ng-if="checked && checked2"> I'm removed when the checkbox is unchecked. </span> http://plnkr.co/edit/UKNoaaJX5KG3J7AswhLV?p=preview
72
Just to clarify, be aware bracket placement is important!
These can be added to any HTML tags... span, div, table, p, tr, td etc.
AngularJS
ng-if="check1 && !check2" -- AND NOT ng-if="check1 || check2" -- OR ng-if="(check1 || check2) && check3" -- AND/OR - Make sure to use brackets Angular2+
*ngIf="check1 && !check2" -- AND NOT *ngIf="check1 || check2" -- OR *ngIf="(check1 || check2) && check3" -- AND/OR - Make sure to use brackets It's best practice not to do calculations directly within ngIfs, so assign the variables within your component, and do any logic there.
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