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parameterMystery14

Language/Type: JavaScript parameters return

The following console program uses parameters and produces eight lines of output. What are they? 

function main() {
    let a = 137;
    let b = 42;
    console.log("a = " + a);
    foo(b);
    console.log("a = " + a);
    console.log("b = " + b);
    a = bar(b, a + b);  
    console.log("a = " + a);
    a = bar(a, b);  
    console.log("a = " + a);
}

function foo(a) {
    console.log("a = " + a);
    a = 160;
}

function bar(c, b) {
    let d = b - c;
    console.log("d = " + d);
    return d % 10;
}
line 1
line 2
line 3
line 4
line 5
line 6
line 7
line 8

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