@cheatsheetSection Built-in directives @cheatsheetIndex 2 @description `import {NgIf, ...} from 'angular2/angular2';` @cheatsheetItem syntax: `
`|`*ng-if` description: Removes or recreates a portion of the DOM tree based on the showSection expression. @cheatsheetItem syntax: `
  • `|`*ng-for` description: Turns the li element and its contents into a template, and uses that to instantiate a view for each item in list. @cheatsheetItem syntax: `
    `|`[ng-switch]`|`[ng-switch-when]`|`ng-switch-when`|`ng-switch-default` description: Conditionally swaps the contents of the div by selecting one of the embedded templates based on the current value of conditionExpression. @cheatsheetItem syntax: `
    `|`[ng-class]` description: Binds the presence of css classes on the element to the truthiness of the associated map values. The right-hand side expression should return {class-name: true/false} map.