When I globally invoke a function, the this inside it will refer to window.
I have read "Good Part" so I know to workaround it by another variable
"that". But see below example:
I want to append some code to an event handler:
aDiv.onclick = function () {
var tmpFunc = aDiv.onclick;
return function () {
tmpFunc();
someAnotherFunc();
}
}();
It almost works well. But if origin onclick contain a this, it will refer to
window because tmpFunc() is a global invocation.
I found a solution, but I think it's not clever:
(If possible I wouldn't like to change origin onclick because it's in
another file)
aDiv.onclick = function () {
var tmpFunc = aDiv.onclick;
var tmpObject = aDiv;
return function () {
tmpFunc.apply(tmpObject);
someAnotherFunc();
}
}();
--
Lai, Yu-Hsuan
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