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Why can't I call read() twice on an open file?
...o return the read cursor to the start of the file (docs are here). If you know the file isn't going to be too large, you can also save the read() output to a variable, using it in your findall expressions.
Ps. Dont forget to close the file after you are done with it ;)
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SQLite INSERT - ON DUPLICATE KEY UPDATE (UPSERT)
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Since 3.24.0 SQLite also supports upsert, so now you can simply write the following
INSERT INTO visits (ip, hits)
VALUES ('127.0.0.1', 1)
ON CONFLICT(ip) DO UPDATE SET hits = hits + 1;
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How to declare or mark a Java method as deprecated?
...ines for readability <br/>
When it will be removed. (let your users know how much they can still rely on this method if they decide to stick to the old way)
Provide a solution or link to the method you recommend {@link #setPurchasePrice()}
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Maven2 property that indicates the parent directory
... </execution>
</executions>
</plugin>
<!-- Now, I can load the properties file using the new 'env-properties-file-by-groovy' property. -->
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>properties-maven-plugin</artifact...
How can I use vim to convert my file to utf8?
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@0xC0000022L, last time I checked (haven't checked now), there was something about coming up with a solution after doing the research, not about posting question and answer in a minute. That said, I was only talking about what is strange about his answer, not what makes it in...
How do I make Vim do normal (Bash-like) tab completion for file names?
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This used to be working in the past (gVim/ubuntu) but now it does not (macvim8.x/macOS). See example. Any ideas?
– Paschalis
Dec 21 '16 at 19:19
1
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Why does C# disallow readonly local variables?
...in the case of other languages). The fact that it's disallowed in C# right now, is another argument that some of the "features" of C# are merely an enforcement of personal coding style of its creators.
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Is there an S3 policy for limiting access to only see/access one bucket?
...ome more (like PutBucketAcl).
The following IAM policy is working for me now:
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"s3:ListBucket",
"s3:GetBucketLocation",
"s3:ListBucketMultipartUploads"
],
"Resource": ...
How do I execute code AFTER a form has loaded?
...ad...
string newText = ExpensiveMethod(); // perhaps a DB/web call
// now ask the UI thread to update itself
this.Invoke((MethodInvoker) delegate {
// this code runs on the UI thread!
this.Text = newText;
});
}
It does this by pushing a message onto the windows message queue; ...
Is String.Format as efficient as StringBuilder
...egabytes of text, or whether it's being called when a user clicks a button now and again. Unless you're doing some huge batch processing job I'd stick with String.Format, it aids code readability. If you suspect a perf bottleneck then stick a profiler on your code and see where it really is.
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