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Fix negative 0 in certain diff cases #3232

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Fix negative 0 in certain diff cases #3232

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3 changes: 2 additions & 1 deletion src/lib/utils/abs-floor.js
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@@ -1,6 +1,7 @@
export default function absFloor (number) {
if (number < 0) {
return Math.ceil(number);
// -0 -> 0
return Math.ceil(number) || 0;
} else {
return Math.floor(number);
}
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4 changes: 4 additions & 0 deletions src/test/moment/diff.js
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Expand Up @@ -240,4 +240,8 @@ test('negative zero', function (assert) {
assert.ok(!isNegative(moment([2012, 0, 1]).diff(moment([2012, 0, 1]), 'months')), 'month diff on same date is zero, not -0');
assert.ok(!isNegative(moment([2012, 0, 1]).diff(moment([2012, 0, 1]), 'years')), 'year diff on same date is zero, not -0');
assert.ok(!isNegative(moment([2012, 0, 1]).diff(moment([2012, 0, 1]), 'quarters')), 'quarter diff on same date is zero, not -0');
assert.ok(!isNegative(moment([2012, 0, 1]).diff(moment([2012, 0, 1, 1]), 'days')), 'days diff on same date is zero, not -0');
assert.ok(!isNegative(moment([2012, 0, 1]).diff(moment([2012, 0, 1, 0, 1]), 'hours')), 'hour diff on same hour is zero, not -0');
assert.ok(!isNegative(moment([2012, 0, 1]).diff(moment([2012, 0, 1, 0, 0, 1]), 'minutes')), 'minute diff on same minute is zero, not -0');
assert.ok(!isNegative(moment([2012, 0, 1]).diff(moment([2012, 0, 1, 0, 0, 0, 1]), 'seconds')), 'second diff on same second is zero, not -0');
});