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Fixes #437 -- add an 'immediate' parameter to _.debounce.

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Jeremy Ashkenas
2012-01-30 10:53:46 -05:00
parent 1bb750508d
commit 5533c12033
2 changed files with 19 additions and 3 deletions
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14
test/functions.js
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@@ -146,6 +146,20 @@ $(document).ready(function() {
_.delay(function(){ ok(counter == 1, "incr was debounced"); start(); }, 220);
});
asyncTest("functions: debounce asap", 2, function() {
var counter = 0;
var incr = function(){ counter++; };
var debouncedIncr = _.debounce(incr, 50, true);
debouncedIncr(); debouncedIncr(); debouncedIncr();
equal(counter, 1, 'incr was called immediately');
setTimeout(debouncedIncr, 30);
setTimeout(debouncedIncr, 60);
setTimeout(debouncedIncr, 90);
setTimeout(debouncedIncr, 120);
setTimeout(debouncedIncr, 150);
_.delay(function(){ equal(counter, 1, "incr was debounced"); start(); }, 220);
});
test("functions: once", function() {
var num = 0;
var increment = _.once(function(){ num++; });