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Showing posts with the label Scope

Put A Value Outside A Function In A Global Var

I'm sorry guys, the entire code is this. I given you the short form to be light, but I made man… Read more Put A Value Outside A Function In A Global Var

`function` Declarations Are Function Scoped, But `async Function` Declarations Are Block Scoped?

Should the following code work? if(true) { async function bar() { console.log('hello'… Read more `function` Declarations Are Function Scoped, But `async Function` Declarations Are Block Scoped?

Difference Between Function Level Scope And Block Level Scope

I have been programming in JavaScript for a few months mostly using jQuery. I understand closures a… Read more Difference Between Function Level Scope And Block Level Scope

Jquery Plugin Object: Attached An Event Handler Via .on() And Now Have A Scope Issue Of This. (the Main Plugin Object)

I am attempting to move away from spaghetti code in my jQuery plugins and work in a more structured… Read more Jquery Plugin Object: Attached An Event Handler Via .on() And Now Have A Scope Issue Of This. (the Main Plugin Object)

How Do Javascript Closures Work?

How would you explain JavaScript closures to someone with a knowledge of the concepts they consist … Read more How Do Javascript Closures Work?

Scope Troubles In Javascript When Passing An Anonymous Function To A Named Function With A Local Variable

Sorry about the title - I couldn't figure out a way to phrase it. Here's the scenario: I ha… Read more Scope Troubles In Javascript When Passing An Anonymous Function To A Named Function With A Local Variable

Variables Accessible From Within A Function Passed As Parameter To Event.observe() (prototype.js). Why?

I have the following working JS script in one of the sites I'm working on. I'm wondering wh… Read more Variables Accessible From Within A Function Passed As Parameter To Event.observe() (prototype.js). Why?

Javascript Named Function As An Expression

Javascript Code var d = function c() { console.log(c); }; d(); // function c() { console.log(c); };… Read more Javascript Named Function As An Expression

$scope Exists On Browser Debugger, But Does Not Exist In Terminal

I have a directive that is depended on a controller which gets data from an api though Ajax call. I… Read more $scope Exists On Browser Debugger, But Does Not Exist In Terminal

Javascript Scope Of Function Declarations

The var keyword in javascript causes a variable to be stored in the local scope. Without var varia… Read more Javascript Scope Of Function Declarations

Variable Scope And Var

It all started with these simple lines of code: a = 3; b = 2; function line(x) { var a = 5; … Read more Variable Scope And Var

How Does The Js Scope Of These Blocks Work?

Can anyone explain why the following produces 1,2 and the other produces 5? Should they not both pr… Read more How Does The Js Scope Of These Blocks Work?

Replacing Eval In Privately Scoped Variables

I'm trying to remove the eval statement in this function. I'm used to the this[whatever] st… Read more Replacing Eval In Privately Scoped Variables

Javascript Variable Scope Question: To Var, Or Not To Var

Many thanks in advance. I'm working out of a schoolbook and they're using one function to … Read more Javascript Variable Scope Question: To Var, Or Not To Var

Javascript Scoping Variables Theory

I have two example pages that are behaving differently and I would like to know why. To me they see… Read more Javascript Scoping Variables Theory

Javascript Function Parameter And Scope

I have done some tests with codes listed below: function foo(x) { alert(y); } var y = 'I am… Read more Javascript Function Parameter And Scope

Javascript - Global Variable Not In Scope After Being Defined In Callback?

whenever i try to run something like the following, firebug tells me that 'markers is undefined… Read more Javascript - Global Variable Not In Scope After Being Defined In Callback?

Dojo Javascript Variable Scope

I am using dgrid and i am attempting to set the dataStore externally. When the page loads i call al… Read more Dojo Javascript Variable Scope

Angularjs: Manipulate The $scope Of An Unknown $element

New to Angular. I'm creating a directive (attribute) for global use through the whole project. … Read more Angularjs: Manipulate The $scope Of An Unknown $element

Javascript Es6 'let' And 'var' - Unexpected Behavior Inside Function With Argument Name Matching Redeclared Variable

Please note this is not duplicate of existing var vs let scope. I'm aware of the scope of var a… Read more Javascript Es6 'let' And 'var' - Unexpected Behavior Inside Function With Argument Name Matching Redeclared Variable