AngularJS ng-switch Directive
Last Updated :
08 Aug, 2022
The ng-switch Directive in AngularJS is used to specify the condition to show/hide the child elements in HTML DOM. The HTML element will be displayed only if the expression inside the ng-switch directive returns true otherwise it will be hidden. It is supported by all HTML elements.
Syntax:
<element ng-switch="expression">
<element ng-switch-when="value"> Contents... </element>
<element ng-switch-when="value"> Contents... </element>
<element ng-switch-default> Contents... </element>
</element>
Parameter:
- expression: It specifies the element has matched and will be displayed otherwise will be discarded.
Example 1: This example uses the ng-switch Directive to switch the element.
HTML
<!DOCTYPE html>
< html >
< head >
< title >ng-switch Directive</ title >
< script src =
</ script >
</ head >
< body ng-app = "" >
< h1 style = "color:green;" >GeeksforGeeks</ h1 >
< h2 >ng-switch Directive</ h2 >
< div >
< form >
< label >
< input type = "radio"
value = "search"
ng-model = "switch.Data" >
Searching Algorithms
</ label >
< label >
< input type = "radio"
value = "sort"
ng-model = "switch.Data" >
Sorting Algorithms
</ label >
</ form >
< div ng-switch = "switch.Data" id = "wrapper" >
< div ng-switch-when = "search" >
< h2 > Searching Algorithms</ h2 >
< ul >
< li >Binary Search
< li >Linear Search
</ ul >
</ div >
< div ng-switch-when = "sort" >
< h2 >Sorting Algorithms</ h2 >
< ul >
< li >Merge Sort
< li >Quick Sort
</ ul >
</ div >
</ div >
</ div >
</ body >
</ html >
|
Output:
Example 2: This example uses the ng-switch Directive to display the entered number.
HTML
<!DOCTYPE html>
< html >
< head >
< title >ng-switch Directive</ title >
< script src =
</ script >
< link rel = "stylesheet" href =
</ head >
< body ng-app = "" style = "text-align:center;" >
< h1 style = "color:green;" >GeeksforGeeks</ h1 >
< h2 >ng-switch Directive</ h2 >
< div >
< div class = "col-md-3" >
Type Number(1-2):
< input ng-model = "number" type = "number" />
</ div >< br >
< div ng-switch = "number" class = "col-md-3" >
< div ng-switch-when = "1" class = "btn btn-danger" >
You entered {{number}}
</ div >
< div ng-switch-when = "2" class = "btn btn-primary" >
You entered {{number}}
</ div >
< div ng-switch-default class = "well" >
This is the default section.
</ div >
</ div >
</ div >
</ body >
</ html >
|
Output:
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