- Change wording in first paragraph, and break out examples into numbered bullets.
- Change some articles and words to make sentences clearer and more consistent.

Gecko is the layout engine of Firefox. The JavaScript engine is called SpiderMonkey

I'm sure the fruit variable was supposed to be used somewhere.

Typo - miss closing parenthesis in add.map() example

miss closing parenthesis in arr.map() example, update article.md

Wrong variables name

Fix computed property example

Fix: Wrong name for Firefox JavaScript engine

article.md - Break out examples towards top (for clarity) and change some wording

Typo - miss  't', word 'between' in description arr.join() method

https://en.wikipedia.org/wiki/Reggae

typo fix

Typo - miss letter 't'

Reggie --> Reggae

…al-en

Typo - miss ')' for closing parentheses of map method, line 46

Typo - expected ')' for 'if' construction condition

probable typo fixed

Fix typo in readme

Typo - expected ')'

Typo - extra letter 'l' before calling function

Update article.md

Update article.md

fixed typo in 1-endless-page

fixed typo

Update article.md

Update article.md

Update solution.md

Update article.md

Update article.md

Minor spelling correction

It is syntactic sugar, not syntax

Update article.md

Update article.md

Update 03-cross-window-communication/article.md

Update solution.md

Update task.md

Update solution.md

Update solution.md

…al-en

Update article.md

A more ideal explanation of `this` assigning

Clarity for this

Typo

Below instead of Above