p.location-badge. exported from angular2/directives defined in angular2/src/directives/switch.js (line 39) :markdown The `Switch` directive is used to conditionally swap DOM structure on your template based on a scope expression. Elements within `Switch` but without `SwitchWhen` or `SwitchDefault` directives will be preserved at the location as specified in the template. `Switch` simply chooses nested elements and makes them visible based on which element matches the value obtained from the evaluated expression. In other words, you define a container element (where you place the directive), place an expression on the **`[switch]="..."` attribute**), define any inner elements inside of the directive and place a `[switch-when]` attribute per element. The when attribute is used to inform Switch which element to display when the expression is evaluated. If a matching expression is not found via a when attribute then an element with the default attribute is displayed. # Example: ``` ``` .l-main-section h2 Members .l-sub-section h3 constructor pre.prettyprint code. constructor() :markdown .l-sub-section h3 value pre.prettyprint code. value(value) :markdown