Knockout includes a function called ko.isObservable() . You can call it like ko.isObservable(vm[key]) . Update from comment: Here is a function to determine if something is a computed observable: UPDATE: If you are using KO 2.1+ - then you can use ko.isComputed directly.
Command Block. The Command Block is a redstone-powered block that was made available in the 1.4 update for Minecraft. The Command Block will perform server Commands when attached to a redstone circuit. This block cannot be crafted, and only server operators are allowed to place and use them.
So you want to do fancy things like teleport using command block and want to know where to find them in the single player game of Minecraft because you can't find them in the creative inventory. Right. Don't worry here comes the answer, with no video and now more fluff. To get command blocks in Minecrat: 1  Start Minecraft.