I know that 'this' in JavaScript has a different meaning than in in TypeScript, as per this article 'this' in TypeScript. I have the following code in JavaScript used to create a thicker stroke on the selected node, and give all oth...
I understand that there is global scope, and additionally nestable functional scope.  But are there any other types of scopes or closures in Javascript?  While we're on the topic, what's the difference between a scope, and a closure?...
You are allowed to use free-standing blocks like this...   var something = 1; {   var something = 2;   print("Inside: " + something); } print("Outside: " + something);   This is from: http://eloquentjavascript.net/chapter3.html#p3...
Say we have a function:  function foo() {     var x = 10;              function bar() {         var y = 20;          return x + y;        }     return bar(); }  console.log(foo());   What would this look like in a memory model. So far this is what I...
I've got some weird behavior with a for-in loop.  Code:  var obj = {     q:1,     w:2,     e:4,     r:5 };  function test(data) {     for (key in data) {         //do sth;     } }  !function() {     for (key in obj) {         console.log(key);...
Firstly, taking note of MDN's definition of a closure:     A closure is the combination of a function and the lexical   environment within which that function was declared.   In the below code, a singleton is produced as a result of the IIFE....
I have a function where I'm making a call to a MVC controller that returns a JSON blob, with the contents of some back-end action.  This JSON blob is being used to populate a table that is presented to the end-user.  My function currently looks s...
I am relatively new with the Javascript closure concept. I know how to get the work done, but I want to understand the concept through and through.  Can somebody explain in short, why example 1,2 works,and 3,4 doesn't? Any good links regarding js...
I need to create a function which I will pass to my database server. The returned function will take a single item as a parameter and compare that item to a list of requirements.  For this I need a function generating function that takes an array as...
const objectTestThis = {   name: "hihi",   testThisWithArrowFunction: () => {     console.log(this);   },   testThisWithNormalFunction() {     console.log(this);   }, }; objectTestThis.testThisWithArrowFunction(); objec...

Tags

Recent Questions

Top Questions

Home Tags Terms of Service Privacy Policy DMCA Contact Us

©2020 All rights reserved.