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If you put use strict at the top of your code (or function), then the JS is evaluated in strict mode. Strict mode throws more errors and disables some features in an effort to make your code more robust, readable, and accurate.

Hoisting is a mechanism where variables and function declarations are moved to the top of their scope before code execution.

standards bodies create the standards that make our work as developers more efficient and make the technology we take advantage of as consumers possible.

ive had to take time away from my personal hobbies and give computer coding my full time to try to understand it the most Ican it truely has been a challenge.

It’s probable that you’ll encounter global variable name clashes. Since there’s only one namespace you’re more likely to double up on a variable name.