Why can’t i output outside a function, in this scenario where i’m creating a simple counter i’m confused as to why it’s working inside and not out?

Why can’t I output outside the function here, why does it need to be inside? Answer Because if it were where you’ve shown in the question, the value would be 0. The code runs immediately on page load, it doesn’t wait for something to call countJar. Where it is now, it doesn’t run until countJar is called. If you mean you can’t even see 0 when you try to put it there, that would be because the id=”demo” element doesn’t exist yet. If that’s what you mean, this question’s answers apply.

trouble multiplying in JavaScript

So what I am trying to do here in JavaScript is find out is i want to order more candy or not. So far I compare the in Stock to the weekly average and if in Stock is < weekly average I will order 2 times the weekly Average. However, if the is greater than in Stock then i will order nothing. Here’s my code so far. My function should take on 2 arguments which is inventory and candy here. I cant figure out why it returning nothing but zero, when it should be letting me know how much candy

How does empty return statement in conditional statement functions?

Learning JS from MDN Docs came across code in “functions section”. Not able to understand what does return; in the below code accomplish Output I understood first 5 lines of output, but not able to understand why end: 0,1,2,3 are coming? Please help ! Answer return terminates the current function, and returns control flow to the caller. When foo(3); is called, the function is initialized with an i parameter of 3. It fails the if statement, prints begin: 3, and then calls foo(3 – 1);. At this point, the current function (the one with an i parameter of 3) is

Using already created functions inside a new Javascript function

I’m beginner, so this question might be silly. I had to do 4 Javascript Function, I will put them below Now i have to create the last function, which does: Applies Half function on the parameter I’ve given to the new function(a), stores is in a new variable(result), result becomes parameter for the function square, the result will be stored again in a new variable(resultSquare), resultSquare will be used in Area function and stored in a new variable(resultArea). In the end, I need percent function, to find out the percent of resultArea from resultSquare. I tried like this, but no

Is there a way to make this code shorter? (reaction collector)

I tried to make one filter for both collectors but still have to type this (x,y,z) => filter(x,y,z,’⪒) Answer You can make a higher-order function, one that takes in the character you’re looking for and returns a function that takes three arguments (reaction, user, and c, corresponding to your current (x, y, x) =>) and returns the appropriate filter operation. Also, it doesn’t look like c (same as z) is being used at all in any code here, so feel free to remove it from the argument list.

Javascript call() & apply() vs bind()?

I already know that apply and call are similar functions which setthis (context of a function). The difference is with the way we send the arguments (manual vs array) Question: But when should I use the bind() method ? jsbin Answer I created this comparison between function objects, function calls, call/apply and bind a while ago: .bind allows you to set the this value now while allowing you to execute the function in the future, because it returns a new function object.

What is the scope of variables in JavaScript?

What is the scope of variables in javascript? Do they have the same scope inside as opposed to outside a function? Or does it even matter? Also, where are the variables stored if they are defined globally? Answer TLDR JavaScript has lexical (also called static) scoping and closures. This means you can tell the scope of an identifier by looking at the source code. The four scopes are: Global – visible by everything Function – visible within a function (and its sub-functions and blocks) Block – visible within a block (and its sub-blocks) Module – visible within a module Outside