Calling a function in JavaScript without parentheses

Question

Is there a way in JavaScript to call a function without parentheses?

For example in jQuery:

$(\'#wrap\').text(\"asdf\"); will work and so will <

Answer 1

new

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You can call a function using new. The twist is, within the function this becomes an object being constructed by the function instead of whatever it would normally be.

function test () { alert('it worked'); }
...
new test; // alerts "it worked"

call and apply

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You can use call or apply to call a function indirectly. You'll still need parentheses (unless you use new), but you won't be directly invoking the function with parentheses.