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JavaScript JavaScript Loops, Arrays and Objects Tracking Multiple Items with Arrays Useful Array Methods

Posted by atoniolo
atoniolo
9,216 Points

How does he declare the prompt variable and without writing a command for the prompt the prompt still runs?

In the video, Dave declares a variable named search, and in the variable he puts a prompt command. My question is how he got the command to run without writing the command. Maybe I am confused if you declare a variable and assign a method or command to it and it runs or not.

1 Answer

Steven Parker
Steven Parker
231,275 Points
Steven Parker
Steven Parker
231,275 Points

If you call a method or function (using parentheses after the name) to assign a variable, then that method/function code runs before the assignment is made.

Calling a method or function in a statement by itself is only useful if the method/function does not return a value. If it did, then without an assignment the return value would be lost.

atoniolo
atoniolo
9,216 Points

Thank you that helps!