大约有 44,000 项符合查询结果（耗时：0.0644秒） [XML]
How to shorten my conditional statements
...it's much slower if you have one loop with very large n (number of "itemX" strings). I hacked up this code generator that you can use to verify (or perhaps refute). obj["itemX"] is extremely fast if n is large. Basically, what's fast depends on context. Have fun.
– kojiro
...
Reading an image file into bitmap from sdcard, why am I getting a NullPointerException?
...ote the following code to convert an image from sdcard to a Base64 encoded string to send as a JSON object.And it works great:
String filepath = "/sdcard/temp.png";
File imagefile = new File(filepath);
FileInputStream fis = null;
try {
fis = new FileInputStream(imagefile);
} catch (FileNotF...
How to add item to the beginning of List?
...s = ti.Prepend(0).Append(4);
// output is 0, 1, 2, 3, 4
Console.WriteLine(string.Join(", ", results ));
share
|
improve this answer
|
follow
|
...
How to use cURL to send Cookies?
...ion -b, --cookie, e.g. curl -b <file-or-pairs>, if the argument is a string having the '=' symbol, it's passed as is, otherwise it's treated as a filename to read cookie from.
– ryenus
Oct 21 '14 at 2:10
...
Python creating a dictionary of lists
...
Personally, I just use JSON to convert things to strings and back. Strings I understand.
import json
s = [('yellow', 1), ('blue', 2), ('yellow', 3), ('blue', 4), ('red', 1)]
mydict = {}
hash = json.dumps(s)
mydict[hash] = "whatever"
print mydict
#{'[["yellow", 1], ["blue"...
How can I sort arrays and data in PHP?
...ray $b) {
return someFunction($a['baz']) - someFunction($b['baz']);
}
Strings
A shortcut for the first string comparison version:
function cmp(array $a, array $b) {
return strcmp($a['foo'], $b['foo']);
}
strcmp does exactly what's expected of cmp here, it returns -1, 0 or 1.
Spaceship oper...
curl -GET and -X GET
...them in the request body with POST, put them at the end of the URL's query string and issue a GET, with the use of `-G. Like this:
curl -d name=daniel -d grumpy=yes -G https://example.com/
share
|
...
Receive result from DialogFragment
...ke:
public interface EditNameDialogListener {
void onFinishEditDialog(String inputText);
}
Then, add a reference to that listener:
private EditNameDialogListener listener;
This will be used to "activate" the listener method(s), and also to check if the parent Activity/Fragment implements t...
Byte[] to InputStream or OutputStream
... can convert byte[] array into input stream by using ByteArrayInputStream
String str = "Welcome to awesome Java World";
byte[] content = str.getBytes();
int size = content.length;
InputStream is = null;
byte[] b = new byte[size];
is = new ByteArrayInputStream(content);
For ful...
In Scala, what exactly does 'val a: A = _' (underscore) mean?
...
val a: A = _ is a compile error. For example:
scala> val a: String = _
<console>:1: error: unbound placeholder parameter
val a: String = _
^
What does work is var a: A = _ (note var instead of val). As Chuck says in his answer, this initialises th...