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Martin Grogan
5,980 PointsThe answer is True but only if .... Maybe specify that 'if' in the question because I answered False BECAUSE of the 'if'
change the answer to the question or change the question itself, because it is confusing :P
4 Answers
Samuel Webb
25,370 PointsThe key words are "DECLARE" and "WITHIN". The answer is True. Declaring a variable means using the var keyword to make it. Meaning inside of the function you would type var whatever = whatever and if you do that it is only accessible from within the function.
But if inside of the function you just type whatever = whatever, you're technically declaring the variable outside of the function and that makes it a global variable.
The question and answer are both correct.
function something(){
var hello = "world"; // Declaring a variable inside of a function. only accessible in that function
}
function somethingElse(){
hello = "world"; // This actually gets declared outside of the function which makes it global.
}
The confusion comes from not having a complete grasp on the actual complexity of scope in JavaScript.
Samuel Webb
25,370 PointsWhat question are you talking about?
Martin Grogan
5,980 PointsQuiz Question 3 of 5 When you declare a variable within a function, that variable is only accessible within that function.
The real answer is should be False, not True
JavaScript basic Quiz | Review Scope
Martin Grogan
5,980 PointsI see the point, Thanks for answering so fast !
Samuel Webb
25,370 PointsGlad to help. This was quite a confusing thing to me when I first got started with JS.