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Is there any kind of hash code function in JavaScript?
Basically, I'm trying to create an object of unique objects, a set. I had the brilliant idea of just using a JavaScript object with objects for the property names. Such as,
...
I don't understand -Wl,-rpath -Wl,
...separated list of arguments to the linker. So
gcc -Wl,aaa,bbb,ccc
eventually becomes a linker call
ld aaa bbb ccc
In your case, you want to say "ld -rpath .", so you pass this to gcc as -Wl,-rpath,. Alternatively, you can specify repeat instances of -Wl:
gcc -Wl,aaa -Wl,bbb -Wl,ccc
Note tha...
Merging two images in C#/.NET
...
basically i use this in one of our apps:
we want to overlay a playicon over a frame of a video:
Image playbutton;
try
{
playbutton = Image.FromFile(/*somekindofpath*/);
}
catch (Exception ex)
{
return;
}
Image frame;
try...
How exactly does work?
...pt> elements. I saw the defer attribute can come in handy here as it allows code blocks to be postponed in execution.
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What is the best way to filter a Java Collection?
...he predicate):
persons.removeIf(p -> p.getAge() <= 16);
lambdaj allows filtering collections without writing loops or inner classes:
List<Person> beerDrinkers = select(persons, having(on(Person.class).getAge(),
greaterThan(16)));
Can you imagine something more readable?
Disc...
How do I update if exists, insert if not (AKA “upsert” or “merge”) in MySQL?
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Yeah, I believe SQL Server's equivalent is called MERGE. In general, the concept is often referred to as "UPSERT".
– chaos
Aug 2 '09 at 13:40
3
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Set TextView text from html-formatted string resource in XML
...that's not documented (I tripped over it after searching for hours, and finally found it in the bug list for the Android SDK itself). You CAN include raw HTML in strings.xml, as long as you wrap it in
<![CDATA[ ...raw html... ]]>
Example:
<string name="nice_html">
<![CDATA[
<p...
Two versions of python on linux. how to make 2.7 the default
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You probably don't actually want to change your default Python.
Your distro installed a standard system Python in /usr/bin, and may have scripts that depend on this being present, and selected by #! /usr/bin/env python. You can usually get away wi...
Make page to tell browser not to cache/preserve input values
...sers. Another alternative is to use Javascript/jQuery to explicitly untick all checkboxes on page load.
– DisgruntledGoat
Apr 28 '10 at 10:28
1
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How do I find the number of arguments passed to a Bash script?
...ash
echo "The number of arguments is: $#"
a=${@}
echo "The total length of all arguments is: ${#a}: "
count=0
for var in "$@"
do
echo "The length of argument '$var' is: ${#var}"
(( count++ ))
(( accum += ${#var} ))
done
echo "The counted number of arguments is: $count"
echo "The accumula...