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Ensure _.debounce with leading and trailing will call the func on the leading edge after a trailing call is performed. [closes #257]

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Former-commit-id: 97afe842b2b4c3eb20c9557298e01ec268386ea2
This commit is contained in:
John-David Dalton
2013-05-01 09:03:52 -07:00
parent 8f94bd1fbd
commit e773efdc59
2 changed files with 18 additions and 6 deletions
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9
lodash.js
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@@ -4482,6 +4482,7 @@
*/
function debounce(func, wait, options) {
var args,
calledTwice,
inited,
result,
thisArg,
@@ -4489,8 +4490,9 @@
trailing = true;
function delayed() {
inited = timeoutId = null;
if (trailing) {
var callTrailing = trailing && ((leading && calledTwice) || !leading);
calledTwice = inited = timeoutId = null;
if (callTrailing) {
result = func.apply(thisArg, args);
}
}
@@ -4510,8 +4512,9 @@
inited = true;
result = func.apply(thisArg, args);
} else {
timeoutId = setTimeout(delayed, wait);
calledTwice = true;
}
timeoutId = setTimeout(delayed, wait);
return result;
};
}