What is the rationale behind using the equal sign "=" instead of the dot "." when attaching a function to an event listener in JavaScript? Normally, it is the convention to use the dot as notation for perform an action.
clickme.onclick = function() {
alert("pikachu");
}
The distinction lies in accessing versus assigning. The dot symbol is used to access a value, while the equal sign is utilized for assignment purposes.
Using the = operator is necessary for assignment purposes. It assigns a function reference to an object property.
The left part of this assignment pertains to the property onclick within the object named clickme. The dot notation allows access to the object's property.
On the right side of the assignment, there is a function expression, resulting in a reference to a function object. Alternatively, you can define a function and use its identifier for the assignment:
function clickHandler() {
alert("pikachu");
}
clickme.onclick = clickHandler;
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