本文整理匯總了TypeScript中@dataservices/virtualization/view-editor/command/undo-redo/undo-manager.UndoManager.popUndoCommand方法的典型用法代碼示例。如果您正苦於以下問題：TypeScript UndoManager.popUndoCommand方法的具體用法？TypeScript UndoManager.popUndoCommand怎麽用？TypeScript UndoManager.popUndoCommand使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類@dataservices/virtualization/view-editor/command/undo-redo/undo-manager.UndoManager的用法示例。
在下文中一共展示了UndoManager.popUndoCommand方法的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的TypeScript代碼示例。
示例1: it
it( "shouldConvertToJsonCorrectly" , () => {
const undoMgr = new UndoManager();
// add update name command
let cmd = CommandFactory.createUpdateViewNameCommand( "newName", "oldName");
let undoable = CommandFactory.createUndoable( cmd as Command ) ;
undoMgr.add( undoable as Undoable );
// add update description command
cmd = CommandFactory.createUpdateViewDescriptionCommand( "newDescription", "oldDescription");
undoable = CommandFactory.createUndoable( cmd as Command ) ;
undoMgr.add( undoable as Undoable );
// should include both undoables
expect( undoMgr.toJSON() ).not.toBe( null );
expect( undoMgr.toJSON()[ UndoManager.undoables ] ).not.toBe( null );
expect( undoMgr.toJSON()[ UndoManager.undoables ] instanceof Array ).toBe( true );
const undoables = undoMgr.toJSON()[ UndoManager.undoables ] as Array< any >;
expect( undoables.length ).toBe( 2 );
// move the pointer to the left
undoMgr.popUndoCommand();
expect( undoMgr.toArray().length).toBe( 1 );
expect( undoMgr.toArray().length).toBe( 1 );
} );示例2: expect
expect( () => { undoMgr.popUndoCommand(); } ).toThrow();