Jul 30, 2015 · Thus, initialization isn't a term that matters to us. We declare and assign, and the Javascript engine initializes. So to directly answer the example in your question: var example; …

In that case you should declare them using the var keyword outside the functions, to make it clear that you really want to create global variables, and didn't just forget the var when trying to …

691 Is it possible to define a global variable in a JavaScript function? I want use the trailimage variable (declared in the makeObj function) in other functions.

Oct 15, 2020 · How can I declare a global variable in JavaScript?If this is the only application where you're going to use this variable, Felix's approach is excellent. However, if you're writing a …

There are two methods I know of that you can declare a variable's value by conditions. Method 1: If the condition evaluates to true, the value on the left side of the column would be assigned to …

Suppose I need to declare a JavaScript variable based on a counter, how do I do so? var pageNumber = 1; var "text"+pageNumber; The above code does not work.

How can I use a for loop to dynamically create variables, and be returned.

Javascript has a delete operator that can be used to delete a member of an object. Depending on the scope of a variable (i.e. if it's global or not) you can delete it to make it undefined.

Dec 3, 2008 · By using the variable syntax, I can declare the variable (a function pointer essentially) in the shared code and either assign a trivial stub function, or set to null.

Apr 25, 2017 · I can't seem to find a description of the way I should export global variable from ES6 module. Is there a resource where it's defined? The only solution that seems to work is …