Typeof (alternately typeof or TypeOf) is an operator provided by several programming languages which determines the data type of a given variable.
I think it might be only performance case - http://jsperf.com/comparing-underscore-js-isfunction-with-typeof-function/2 And seems that typeof is faster.. so …
javascript performance underscore.js typeofI'm trying to find a way to pass an object to function in and check it type in a runtime. …
typescript types runtime detect typeofI'm working with node.js, so this could be specific to V8. I've always noticed some weirdness with differences between …
javascript node.js syntax instanceof typeofI thought this would be as easy as: if(typeof(Array.push) == 'undefined'){ //not defined, prototype a version of the …
javascript methods properties native typeofSo i have a function that needs to check if an argument is an object, but this fails because: typeof [] // …
javascript types typeofIs there a "typeof" like function in Java that returns the type of a primitive data type (PDT) variable or …
java primitive-types typeofI have written a message handler function in Outlook's Visual Basic (we're using Outlook 2003 and Exchange Server) to help me …
vba outlook typeof mailitem outlook-2003Is there anyway to detect if a JavaScript object is a regex? For example, I would like to do something …
javascript regex constructor instanceof typeofI have a piece of JavaScript code which is expected to set an integer value to a variable. Something is …
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