HIOX (JS) Javascript Tutorial - Operator precedence, sign execution, calculation order

Topic

What is the precedence of the operators or calculation in an expression?
Which calculation or operation will be executed first division or addition?

Explanation

Operators Execution Order:
When the expression or the formula has more operators they will follow the following order of precedence.

Precedence Order	Operator (Symbol)	Operator in Words
1	!, ++, --, ~	Not, Increment, Decrement
2	*, /, %, +, -	Multiplication, Division, Modulus, Addition, Subtraction
3	<< , >>, >>>	-
4	<, <=, >, >=	Less Than, Less than or equal to, Greater Than, Greater than or equal to
5	==, !=, ===, !==	Equals Comparison, Not Equals, Strictly Equals, Strictly Not Equals
6	&, \|, ^, &&, \|\|	Bitwise AND, Bitwise OR, Bitwise Exclusive OR, Logical AND, Logical OR
7	?:	Ternary Operator
8	Assignment Operators =, +=, -=, /=, *=, %=, <<=, >>=, >>>=, &=, ^=	Assign, other assignment operators

Say we have an expression a = 4*2+4;.

Here as we can note from the table. Operator "*" (multiplication) has top preference than "=" (equals) and "+" (addition), so 4*2 will be executed first.

Now the expression is a = 8+4;

In this "+" has highest preference so addition will be done. The result is equated to a and so a becomes 12.

Operator Precedence Order