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How to prevent gcc optimizing some statements in C?
In order to make a page dirty (switching on the dirty bit in the page table entry), I touch the first bytes of the page like this:
...
How do I redirect to another webpage?
...e jQuery code that goes and fetches the next page via AJAX and updates the table with the new data. The example below assumes that you have a web service that returns the new page data.
$(document).ready( function() {
$('a.pager-link').click( function() {
var page = $(this).attr('href'...
Differences in boolean operators: & vs && and | vs ||
...ou're talking about the logical meaning of both operators, here you have a table-resume:
boolean a, b;
Operation Meaning Note
--------- ------- ----
a && b logical AND short-circuiting
a || b logical OR ...
How to write a JSON file in C#?
...
@RobertHarvey Liam's Json.Net link has a nice table showing what the differences are. Coming from the people that make it, of course you should take it with a grain of salt, but it is indeed better than the built-in things.
– Tim S.
...
What is the purpose of base 64 encoding and why it used in HTTP Basic Authentication?
...- it's an encoding. It's a way of representing binary data using only printable (text) characters.
See this paragraph from the wikipedia page for HTTP Basic Authentication:
While encoding the user name and password with the Base64 algorithm typically makes them unreadable by the naked eye, the...
Pandas every nth row
...2nd row it would be df.iloc[1::5, :].
– Little Bobby Tables
Nov 13 '16 at 17:18
17
You can omit t...
JSF vs Facelets vs JSP [duplicate]
...fferent issues occurs in JSP for web applications development.
Here is a table that compares the features of scriplets and facelets:
Source
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PHP Error handling: die() Vs trigger_error() Vs throw Exception
...ry {
while ($row = gather_data()) {
$db->query('INSERT INTO `table` (`foo`,`bar`) VALUES(?,?)', ...);
}
$db->query('COMMIT');
} catch(Exception $e) {
$db->query('ROLLBACK');
}
Here, if gather_data() just plain croaked (using E_USER_ERROR or die()) there's a chance, ...
Flask-SQLAlchemy import/context issue
... id = db.Column(db.Integer, primary_key=True)
...
# Create the database tables.
db.create_all()
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# start the flask loop
app.run()
I just splitted one app.py to app.py and model.py without using Blueprint. In that case, the above answer dosen't work. A line code is needed to work.
before:
...
How to link to a named anchor in Multimarkdown?
...tion to headers within the document, you can provide labels for images and tables which can then be used for cross-references as well.
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