In javascript, A variable is defined in a function. Then, how can it be used in all the code?

Answer 1

You can not use a variable outside a function which is declared inside a function
But if you declare it in global scope then you can use it in function as well as outside function

Answer 2

Declare that variable globally.
Define it before the function
Do like this
var some;
function addText(){
some = "hi" // use like this, don't declare it again
}

// You can call it anywhere in the code

Answer 3

bunny

Answer 4

we can declare it out of the function or declare it globally.

Answer 5

A variable that is created within a function, can not be used or changed outside of the function. As far as the rest of the program is concerned, it doesnt know the variable even exists

Answer 6

If you want it to only exsist globaly as a udeclared variable, it should already do so if you are using the var keyword(it will only exsist on the stack). Otherwise, declare it globaly.

Answer 7

Put the variables in a "Public class xxxx". Then call the variable from the class so it could be xxxx.x

Answer 8

hello