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4. Function() > Redefining Function Parameters
Redefining Function Parameters
A function’s parameters can be redefined inside the function either
directly, or by using the arguments
array. Take a look at the code below.
<!DOCTYPE html><html lang="en"><body><script>
var foo = false;
var bar = false;
var myFunction = function(foo, bar) {
arguments[0] = true;
bar = true;
console.log(arguments[0], bar); // logs true true
}
myFunction();
</script></body></html>
Notice that I can redefine the value of the bar
parameter using the arguments index or
by directly reassigning a new value to the parameter.
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