We have an array called stringArray:
var stringArray = new Array();
stringArray[1] = 'one';
In Angular, the ngFor directive displays nothing when stringArray[0] is undefined. How can this issue be resolved?
We have an array called stringArray:
var stringArray = new Array();
stringArray[1] = 'one';
In Angular, the ngFor directive displays nothing when stringArray[0] is undefined. How can this issue be resolved?
Using ng-container for loops with ngFor and conditionals in a < li > element should work smoothly.
I successfully recreated this setup on StackBlitz. Here is the link to the demo:
https://stackblitz.com/edit/angular-xyzabc?file=src%2Fapp%2Fapp.component.html
If you're looking to remove values like undefined, null, and empty strings from your template, one way to do it is by utilizing the filter method on your data source:
const dataSource = [
undefined,
null,
"",
"Hello World"
];
const filteredArray = dataSource.filter(item => item);
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