Understanding Javascript Mathematical Precedence

JavaScript Code Gets Executed in a Left to Right Association Context. Javascript also like C, Many other Programming languages follows the BEDMAS (Braces, Exponentials, Division Multiplication, Addition and Subtractions) For more details read JavaScript Operator Precedence.

/* JavaScript uses left to right assoication in executing a program if expressions are not separated and just like C BEDMAS Rules Apply */
function test1 (a, b, c) {
function foo ( t ) {
return t;
    }
a = b * 2 + foo(c * 3);
    return a;
}
console.log(test1(1,2,3));
/*
function test1(1,2,3) {
a = 1;
b = 2;
c = 3;
a = 2 * 2 + foo (3 * 3)
a = 4 + foo (9)
foo will just return 9 so
a = 4 + 9;
a = 13
}
*/
console.log(test1(0,1,2));
/*
function test1(0,1,2) {
a = 0;
b = 1;
c = 2;
a = 1 * 2 + foo (2 * 3)
a = 2 + foo (6)
foo will just return 6 so
a = 2 + 6;
a = 8
}
*/
function test2 (a, b, c) {
function foo ( t ) {
return t;
    }
a = foo(c * 3)+ b * 2;
    return a;
}
console.log(test2(1,2,3));
/*
function test1(1,2,3) {
a = 1;
b = 2;
c = 3;
a = foo (3 * 3) + 2 * 2
a = foo (9) + 2 * 2
foo will just return 9 so
a = 9 + 4;
a = 13;
}
*/
console.log(test2(0,1,2));
/*
function test1(0,1,2) {
a = 0;
b = 1;
c = 2;
a = foo (2 * 3) + 1 * 2
a = foo (6) + 1 * 2
foo will just return 6 so
a = 8;
}
*/