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Start your free trialLucian Dumitru
Courses Plus Student 13,024 PointsWhy aren't you using parentheses when calling the changeColor() function ?
Considering the following line of code:
$("input[type=range]").change(changeColor);
Why is he using
.change( changeColor ); //the function is called without parentheses
and not
.change( changeColor() );
Can someone explain? I'm a little bit confused.
1 Answer
Steven Parker
231,125 PointsThe function is not being called.
In this case, the function itself, and not the result of calling it, is being passed as a parameter to establish an event handler. It will be invoked later by the system when a change event occurs on range input element.
Functions used this way are often called callback functions.