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JavaScript

A collection of 13 issues

JavaScript this

this is not unique to JavaScript. In other languages however, this always point sat instance of a class. On the other hand, in JavaScript, this is determined as execution context is created(🔗 Execution Context). Most of the execution context, with one exception of global execution context, is created on function

Closure

Closure is not a part of JavaScript specification that is defined by ECMAScript. It is rather a phenomenon common to programming languages that have characteristics of functional programming. Therefore, definitions of Closure vary. After consulting various resources that explain what Closure is in their own terms, I've summed

Execution Context

Many characteristic behaviors of JavaScript such as Hosting and this binding(🔗 JavaScript this) are caused by the fact that JavaScript engine executes code in order by creating and removing what is called "Execution Context". Understanding what execution context is helps better understanding how core concepts of JavaScripts are