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Chat: Fix rendering performance using DocumentFragments.

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Valeriano A.R.
2015-05-27 07:38:28 +02:00
parent a09af4b1fa
commit 413af6ca2c
1 changed files with 3 additions and 1 deletions
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Scrummer/Scripts/10. Chat.js
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@@ -32,15 +32,17 @@
recvMsgs = JSON.parse(responseText); recvMsgs = JSON.parse(responseText);
if (recvMsgs) { if (recvMsgs) {
var idMessage = parseInt(hidIDMessage.value); var idMessage = parseInt(hidIDMessage.value);
var frag = document.createDocumentFragment();
for (var i = 0, n = recvMsgs.length; i < n; i++) { for (var i = 0, n = recvMsgs.length; i < n; i++) {
var msg = recvMsgs[i]; var msg = recvMsgs[i];
if (idMessage < msg.IDMessage) { if (idMessage < msg.IDMessage) {
hidIDMessage.value = msg.IDMessage; hidIDMessage.value = msg.IDMessage;
idMessage = msg.IDMessage; idMessage = msg.IDMessage;
var elemMessage = CreateMessageDOM(msg); var elemMessage = CreateMessageDOM(msg);
divContainer.appendChild(elemMessage); frag.appendChild(elemMessage);
} }
} }
divContainer.appendChild(frag);
divContainer.scrollTop = divContainer.scrollHeight; divContainer.scrollTop = divContainer.scrollHeight;
} }