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how to implement a pop up dialog box in iOS
... message:@"You must be connected to the internet to use this app."
delegate:nil
cancelButtonTitle:@"OK"
otherButtonTitles:nil];
[alert show]...
How do I check CPU and Memory Usage in Java?
...gBuilder sb = new StringBuilder();
/* For each filesystem root, print some info */
for (File root : roots) {
sb.append("File system root: ");
sb.append(root.getAbsolutePath());
sb.append("<br/>");
sb.append("Total space (bytes): ...
Passing a String by Reference in Java?
... fillString(String[] zText) { zText[0] += "foo"; }
From a performance point of view, the StringBuilder is usually the best option.
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How do you render primitives as wireframes in OpenGL?
... The link in this answer returns 404.
– Ondrej Slinták
Jul 22 '19 at 13:56
1
@OndrejSlinták...
How can I eliminate slow resolving/loading of localhost/virtualhost (a 2-3 second lag) on Mac OS X L
...nd it was driving me crazy!
Put all your hosts file entries for localhost into one line like so:
127.0.0.1 localhost myproject.dev myotherproject.dev
::1 localhost
fe80::1%lo0 localhost
Worked like a charm for me. Seems like a bug in Lion.
...
LINQ Single vs First
...ustomer = db.Customers.Where( c=> c.ID == 5 ).First();
This code above introduces a possible logic error ( difficult to trace ). It will return more than one record ( assuming you have the customer record in multiple languages ) but it will always return only the first one... which may work some...
Is Task.Result the same as .GetAwaiter.GetResult()?
... while Task.Result will throw an AggregateException. However, what's the point of using either of those when it's async? The 100x better option is to use await.
Also, you're not meant to use GetResult(). It's meant to be for compiler use only, not for you. But if you don't want the annoying Aggrega...
Java List.contains(Object with field value equal to x)
...
Tried the filter based answer by Josh above, but Intellij also suggested your anyMatch answer. Great!
– Thyag
Sep 9 at 16:54
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...
Insert text with single quotes in PostgreSQL
...lue ');DROP SCHEMA public;-- from a malicious user. You'd produce:
insert into test values (1,'');DROP SCHEMA public;--');
which breaks down to two statements and a comment that gets ignored:
insert into test values (1,'');
DROP SCHEMA public;
--');
Whoops, there goes your database.
...
How do I sort a dictionary by value?
..., simplified here as:
from collections import defaultdict
d = defaultdict(int)
for w in text.split():
d[w] += 1
then you can get a list of the words, ordered by frequency of use with sorted(d, key=d.get) - the sort iterates over the dictionary keys, using the number of word occurrences as a s...