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zjquery: Give clear error when handlers are not set.

This commit is contained in:
Steve Howell 2018-03-01 06:43:42 -05:00
parent 5e6649ba87
commit 2d8c1f6d93
1 changed files with 4 additions and 1 deletions
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5
frontend_tests/zjsunit/zjquery.js
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@ -26,7 +26,10 @@ exports.make_zjquery = function () {
on_functions.set(event_name, arg); on_functions.set(event_name, arg);
} else { } else {
var handler = on_functions.get(event_name); var handler = on_functions.get(event_name);
assert(handler); if (!handler) {
var error = 'Cannot find ' + event_name + ' handler for ' + selector;
throw Error(error);
}
handler(arg); handler(arg);
} }
} }