Javascript change value through arguments

function test(a, b, c, d, e) {
    console.log(a,b,c,d,e);
    for (var i=0; i<arguments.length; i++) {
        if (arguments[i] == null) {
            arguments[i] = '~~';
        }
    }
    console.log(a,b,c,d,e);
}

Call the function with: test(10, 20, null, null, 50), get the results as below:

10 20 null null 50
10 20 "~~" "~~" 50

swanwish / blog

Javascript change value through arguments #16