Please, consider the following code.
<!DOCTYPE html>
<title>Question</title>
<script>
function report(handler, _this) {
alert(
"handler:
" + handler + "
" +
"this: " + _this + "
" +
"event: " + event + "
"
)
}
</script>
<input type=button id=A value=A onclick="report(A.onclick, this)">
<script>function f() {report(B.onclick, this)}</script>
<input type=button id=B value=B onclick="f()">
<input type=button id=C value=C>
<script>C.onclick = function () {report(C.onclick, this)}</script>
By clicking the buttons, I have seen that:
A.onclick and B.onclick are wrapped in "function
onclick(event) {...}".- In
B.onclick, this is the window
(rather than a button).
Are there any other considerations?
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