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javascriptvariablesjavascriptcore

Are these two variable settings equal in JavaScript?

I have been wondering that are these two ways of performing variable setting always giving me the same results:

var t = test ? test : 0

and 

var t = test || 0

Because the latter is a bit faster way to do it than the first one and for now I have seen it working exactly the same but was just wondering is this just an illusion and is it possible that it will behave unexpectedly in some specific situations?

Solution

  • Yes, those examples are completely equivalent.