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String concatenation vs. string substitution in Python
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did you make tests with real large strings (like 100000 chars)?
– drnk
Apr 29 '09 at 7:16
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What is the rationale for fread/fwrite taking size and count as arguments?
...ion and the
results stored, in the order read, in
an array of unsigned char exactly
overlaying the object.
fgetc also has this note:
Since fgetc() operates on bytes,
reading a character consisting of
multiple bytes (or "a multi-byte
character") may require multiple calls
to fgetc...
SQL Server principal “dbo” does not exist,
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Do Graphically.
Database right click-->properties-->files-->select database owner-->select [sa]-- ok
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Anyway to prevent the Blue highlighting of elements in Chrome when clicking quickly?
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In addition to the link provided by Floremin, which clears text selection using JavaScript to "clear" the selection, you can also use pure CSS to accomplish this. The CSS is here...
.noSelect {
-webkit-touch-callout: none;
-webkit-user-select: none;
-khtml-user-select: none;
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How to change or add theme to Android Studio?
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File->Settings->Editor->Colors & Fonts-> In scheme name select Darcula and apply to see a awesome dark background theme editor
Android Studio 3.1.2
File->Settings->Editor->Color Scheme-> In scheme name select Darcula and apply to see a awesome dark background theme e...
Converting a Java Keystore into PEM Format
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KeyStore ks = KeyStore.getInstance("jks");
/* Load the key store. */
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char[] password = ...;
/* Save the private key. */
FileOutputStream kos = new FileOutputStream("tmpkey.der");
Key pvt = ks.getKey("your_alias", password);
kos.write(pvt.getEncoded());
kos.flush();
kos.close();
/* Save the cer...
How to “add existing frameworks” in Xcode 4?
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As per Apple's documentation:
In the project navigator, select
your project.
Select your target.
Select the "Build Phases" tab.
Open "Link Binaries With Libraries"
expander.
Click the + button.
Select your framework.
(optional) Drag and drop the added
framework to the "Framework...
Rails: Default sort order for a rails model?
...hen it gets used for actions like where's limiting (filtering) the default selection (a bad idea for a default) rather than just being used for ordering results.
For where selections, just use the regular named scopes. and add that scope on in the query, e.g. Book.all.published where published is a ...
How do I add a Maven dependency in Eclipse?
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In the window that appears, right-click on Global Repositories and select Go Into
Right-click on "central (http://repo.maven.apache.org/maven2)" and select "Rebuild Index"
Note that it will take a while to complete the download
Once indexing is complete, Right-click on the project -> ...
Pandas get topmost n records within each group
... DataFrames only. Which is rather unfortunate, because what if you want to select more than one column?
– oulenz
Oct 23 '19 at 13:53
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