Passing an array as parameter in JavaScript

Question

I have an array  and I want to pass it as a parameter in a function such as   function something arrayP       for var i   0  i  lt  arrayP length  i               alert arrayP i  value              I m getting that arrayP 0  is undefined  which might be true as inside the function I never wrote what kind of array arrayP is  So    Is is possible to pass arrays as parameters  If so  which are the requirements inside the function

User · Answer

It is possible to pass arrays to functions  and there are no special requirements for dealing with them  Are you sure that the array you are passing to to your function actually has an element at  0

User · Answer

JavaScript is a dynamically typed language  This means that you never need to declare the type of a function argument  or any other variable   So  your code will work as long as arrayP is an array and contains elements with a value property

User · Answer

Just remove the  value  like this   function arrayP          for var i   0  i  lt  arrayP length  i           alert arrayP i         no  value here          Sure you can pass an array  but to get the element at that position  use only arrayName index   the  value would be getting the value property off an object at that position in the array - which for things like strings  numbers  etc doesn t exist   For example   myString  value would also be undefined

[javascript] Passing an array as parameter in JavaScript

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