I need some assistance with calling a method that is declared like an object in the following code. What approach should I take to call the function properly?
var draw = function() {
anotherFunction();
}
draw();
Upon execution, an error stating "TypeError: Property 'draw' of object [object Window] is not a function" is displayed.
Your help is greatly appreciated.
In this brief lesson on Javascript scoping, consider the following:
function someFunction() {
var foo = 'bar';
}
someFunction();
// foo is not accessible
The variable foo exists only within the scope of the function someFunction(); once the function executes, foo ceases to exist.
To address this issue, you can assign foo to the "global object," such as "window":
function someFunction() {
window.foo = 'bar';
}
someFunction();
// now foo exists!
However, resorting to using the global object for all variables can quickly lead to a cluttered codebase (programming languages utilize scopes for a reason: avoiding the global space simplifies code management).
Instead, focus on reconciling where draw is created and utilized in your code, aiming to consolidate them or have the creating function return draw, among other strategies.
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