Same variable declared twice. Which is one used? -- JAVASCRIPT
1638
var functionName = function() {} vs function functionName() {}
100941
Synchronising twice on the same object?
47676
What does "var FOO = FOO || {}" (assign a variable or an empty object to that variable) mean in Javascript?
74517
Is using 'var' to declare variables optional?
38133
JavaScript variables declare outside or inside loop?
130597
Understanding Global & Local Scope in Javascript
34063
Is there a reason for C#'s reuse of the variable in a foreach?
151869
What's the scope of a variable initialized in an if statement?
3220
Why do I have to evaluate this twice?
80608
JavaScript check if variable exists (is defined/initialized)
48128
Declaring variables inside or outside of a loop
4053
var keyword not always working?
158951
What makes a static variable initialize only once?
146754
JavaScript: can a variable have multiple values?
92485
JavaScript by reference vs. by value
113905
How can I check whether a variable is defined in JavaScript?
145569
Why does the value returned should be on the same line as the return statement in JavaScript?