ng-if and ng-hide usage

[wonderfan]

The source code: https://github.com/angular/angular.js/blob/master/src/ng/directive/ngIf.js

[wonderfan]

• The ngIf directive removes or recreates a portion of the DOM tree based on an
• {expression}. If the expression assigned to ngIf evaluates to a false
• value then the element is removed from the DOM, otherwise a clone of the
• element is reinserted into the DOM. *
• ngIf differs from ngShow and ngHide in that ngIf completely removes and recreates the
• element in the DOM rather than changing its visibility via the display css property.

[wonderfan]

The source code: https://github.com/angular/angular.js/blob/master/src/ng/directive/ngShowHide.js