Summary of JavaScript: Getting Closure - Mark Dalgleish

00:00:00 - 00:10:00

This video covers the concept of closures in JavaScript. Closures are functions that retain their original scope and are useful for sealing in code and preventing global variables from leaking out. Mark Dalgleish covers how to define closures in a more preferred manner and how to use variables that reference undefined in order to avoid conflicts with other scripts.

• 00:00:00 In this video, Mark Dalgleish explains what closures are and how they are important in JavaScript. He also covers how to define closures in a more preferred manner, and how to use variables that reference undefined in order to avoid conflicts with other scripts.
• 00:05:00 The video covers the use of closures in JavaScript. Closures allow a function to access its private variables from outside of the function.
• 00:10:00 Closures are created when a function is returned from another function, and retain their original scope. They are useful for sealing in code and preventing global variables from leaking out. One important thing to note is that they are now called "selfic executing anonymous functions."