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JavaScript JavaScript Loops, Arrays and Objects Tracking Data Using Objects Using `for in` to Loop Through an Object's Properties

Cheng Chi Man
Cheng Chi Man
18,767 Points
Posted by Cheng Chi Man
Cheng Chi Man
18,767 Points

Why is there no "var" before the "prop" key?

Why is there no "var" before the "prop" key?

1 Answer

Daniel Vigil
Daniel Vigil
26,473 Points
Daniel Vigil
Daniel Vigil
26,473 Points

Not having the var makes the variable global. If you are using 'strict mode' this will not work as global variables throw an error.

Ahmed Mohamed Fouad
Ahmed Mohamed Fouad
11,735 Points

i like the answer as much as I like the question :) , Thanks Daniel