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loop refactor

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This commit is contained in:
Leo Horie 2014-12-12 09:30:48 -05:00
parent 6435a7c646
commit cbedf999cd
1 changed files with 4 additions and 3 deletions
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7
mithril.js
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@ -134,17 +134,18 @@ var m = (function app(window, undefined) {
} }
} }
if (shouldMaintainIdentities) { if (shouldMaintainIdentities) {
if (data.indexOf(null) > -1) data = data.filter(function(x) {return x != null})
var keysDiffer = false var keysDiffer = false
if (data.length != cached.length) keysDiffer = true if (data.length != cached.length) keysDiffer = true
else for (var i = 0; i < data.length; i++) { else for (var i = 0, cachedCell, dataCell; cachedCell = cached[i], dataCell = data[i]; i++) {
if (cached[i].attrs && data[i].attrs && cached[i].attrs.key != data[i].attrs.key) { if (cachedCell.attrs && dataCell.attrs && cachedCell.attrs.key != dataCell.attrs.key) {
keysDiffer = true keysDiffer = true
break break
} }
} }
if (keysDiffer) { if (keysDiffer) {
if (data.indexOf(null) > -1) data = data.filter(function(x) {return x != null})
for (var i = 0, len = data.length; i < len; i++) { for (var i = 0, len = data.length; i < len; i++) {
if (data[i] && data[i].attrs) { if (data[i] && data[i].attrs) {
if (data[i].attrs.key != null) { if (data[i].attrs.key != null) {