February 16, 2000 - Suppressing Errors
February 16, 2000|
Tips: February 2000
Yehuda Shiran, Ph.D.
property (event handler) solves this problem by providing a way to stop those
to a function reference that returns
when executed. This should be done in a separate script, placed first in the
portion of the document. Be sure not to suppress errors in this fashion while
you're writing and testing your scripts. Here's the general syntax of a document
that utilizes error handling to suppress errors:
Notice that the
window.onerror property must be assigned a function reference, not a function call. Also note that the statement:
does not generate an error even if the browser does not support this event handler or property, because it is legal (in all browsers) to expand an existing object by adding a new property (
window.onerror = stopError;
onerrorin this case).
Learn more about error handling in Column 38, IE5 Review: Exception Handling.