This question already has answers here:
JavaScript - Why is this function declaration created in a function expression "undefined"?
(3 answers)
javascript named function expressions - scope accessibility [duplicate]
(4 answers)
What is the scope of variables in JavaScript?
(27 answers)
Closed 2 years ago.
document.getElementById('game').addEventListener('click', function startGame() {
console.log('Game is starting!'); // name of the function is given just for debugging purposes
});
What is the scope of the function startGame?
Where is this function accessible(Where it can be called) ?
Related
This question already has answers here:
How do JavaScript closures work?
(86 answers)
What is the scope of variables in JavaScript?
(27 answers)
Closed last month.
I don't understand why the functions are taking the outer scoped variable instead of the nearest one when called as callback.
function outerFn(){
let x = 1;
function log(){
console.log(x);
};
function run(fn){
let x = 100;
fn();
}
run(log);
};
outerFn();
I was expecting the run to log 100 instead of 1.
"x" is being closed over by your "log()" function. Your "log()" function does not have access to "x" declared in "run()".
This question already has answers here:
"Variable" variables in JavaScript
(8 answers)
Get global variable dynamically by name string in JavaScript
(6 answers)
How to find JavaScript variable by its name
(7 answers)
Closed 12 days ago.
const myObj = { ... }
export function getObj(val) {
return val
}
getObj('myObj')
The variable and function are defined in another file, and then exported.
I am importing the function in another file, but when I pass a 'myObj' as a string, I get the string, and not the referenced variable.
How do I reference the variable?
This question already has answers here:
What is the scope of variables in JavaScript?
(27 answers)
Javascript call nested function
(11 answers)
Closed 2 months ago.
I have this function inside a function, how i call fullName function?
var person = function(){
function fullName(){}
}
person.fullName(); This doesn't work
This question already has answers here:
Explain the encapsulated anonymous function syntax
(10 answers)
Why are parentheses required around JavaScript IIFE? [duplicate]
(3 answers)
Closed 2 years ago.
Why if I have
function(){...}()
does not work while when I put inside brackets like
(function(){...}())
it works?
This question already has answers here:
What does (function($) {})(jQuery); mean?
(6 answers)
What is the (function() { } )() construct in JavaScript?
(28 answers)
Closed 5 years ago.
I see in the jQuery code this structure but I don't know the name and how use correctly.
(function($) {
...
})(jQuery);
I suppose it's a form of past arguments to the function.
this will execute the function immediately (immediately invoked)