JasonLMoffit · November 12, 2019 02:02
diff --git a/Variable Scope Questions b/Variable Scope Questions
 Scope is where variables are declared, whether that be in the global scope or in block scope.
 In global scope variable can be referenced anywhere, and depending on the order of inclusion, by things in other files.
 Block scope refers to things inside a function block, between the opening and closing curly braces.

 Global variables are to be avoided because they can cause conflicts and hard to track bugs.

 JavaScript 'stict mode' will throw error for undeclared variables. It also "prohibits some syntax likely to be defined in future" standards (MDN | https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Strict_mode).

 Side effects are unplanned effects, or mutations. Pure Functions are function that return the same resuts
 with the same arguments every time. When a function returns different results with the same arguments, this is a side effect,
 and an impure function.
	Scope is where variables are declared, whether that be in the global scope or in block scope.
	In global scope variable can be referenced anywhere, and depending on the order of inclusion, by things in other files.
	Block scope refers to things inside a function block, between the opening and closing curly braces.

	Global variables are to be avoided because they can cause conflicts and hard to track bugs.

	JavaScript 'stict mode' will throw error for undeclared variables. It also "prohibits some syntax likely to be defined in future" standards (MDN \| https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Strict_mode).

	Side effects are unplanned effects, or mutations. Pure Functions are function that return the same resuts
	with the same arguments every time. When a function returns different results with the same arguments, this is a side effect,
	and an impure function.
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