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Code for a simple JavaScript countdown timer?
... number, the more accurate the timer will be
}
To use, call:
timer(
5000, // milliseconds
function(timeleft) { // called every step to update the visible countdown
document.getElementById('timer').innerHTML = timeleft+" second(s)";
},
function() { // what to do after
...
How to Store Historical Data
...lly, historical reporting does not have to use up-to-the-minute data, so a batched refresh mechanism is normally fine. This keeps your core and reporting system architecture relatively simple.
If your requirements fall into one of these two categories, you are probably better off not storing hist...
How to prevent a dialog from closing when a button is clicked
...So, since your OnShowListener is called by a message posted on the message queue it is technically possible that calling your listener is delayed some time after show completes.
Therefore, I believe the safest approach is the first: to call show.Dialog(), then immediately in the same execution path ...
SQL Server - transactions roll back on error?
...If a run-time statement error (such as a constraint violation) occurs in a batch, the default behavior in the Database Engine is to roll back only the statement that generated the error. You can change this behavior using the SET XACT_ABORT statement. After SET XACT_ABORT ON is executed, any run-tim...
What's the difference between a proc and a lambda in Ruby?
And when would you use one rather than the other?
8 Answers
8
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How to retrieve a file from a server via SFTP?
... disable: SftpFileSystemConfigBuilder.getInstance().setTimeout(fsOptions, 5000);
– Scott Jones
Sep 6 '12 at 13:35
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Multiple INSERT statements vs. single INSERT with multiple VALUES
...ider using a table valued parameter. Issuing multiple commands in a single batch, by separating them with semicolons, is another approach that will also help.
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UPDATE and REPLACE part of a string
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From review queue: May I request you to please add some context around your source-code. Code-only answers are difficult to understand. It will help the asker and future readers both if you can add more information in your post.
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TCP 的那些事儿（上） - 更多技术 - 清泛网 - 专注C/C++及内核技术
...你应该调整三个TCP参数可供你选择，第一个是：tcp_synack_retries 可以用他来减少重试次数；第二个是：tcp_max_syn_backlog，可以增大SYN连接数；第三个是：tcp_abort_on_overflow 处理不过来干脆就直接拒绝连接了。
关于ISN的初始化。ISN...
How to select rows from a DataFrame based on column values?
...ome, as both the min and MAX values accompany the Mean/StDev relief of the batch.
– user3666197
Aug 6 '19 at 10:01
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