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PHP shell_exec() vs exec()
...s the last line of the output by default, but can provide all output as an array specifed as the second parameter.
See
http://php.net/manual/en/function.shell-exec.php
http://php.net/manual/en/function.exec.php
share
...
Java: Subpackage visibility?
...ta.getBytes(); }
protected char[] getDataAsChars(){ return data.toCharArray(); }
}
make a class in that package that overrides the methods you need in ClassInA:
package a.b;
import a.ClassInA;
public class ClassInAInB extends ClassInA{
ClassInAInB(String data){ super(data); }
@Ove...
Why can Java Collections not directly store Primitives types?
...find that many people think they want Map<int,T>, forgetting that an array will do that trick very nicely.
– DJClayworth
Jan 4 '11 at 16:48
2
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When to use ref and when it is not necessary in C#
...
Since received_s is an array, you're passing a pointer to that array. The function manipulates that existing data in place, not changing the underlying location or pointer. The ref keyword signifies that you're passing the actual pointer to the loc...
C++ Const Usage Explanation
...ntee const, however, guarantees that the caller may not modify the int (or array of ints) returned by Method3.
const int*const& becomes int const*const&, so it is a reference to a const pointer to a const int. Passing a const pointer by references male no sense either - you can't modify the...
Query-string encoding of a Javascript Object
...r=100%25
Edit: this one also converts recursive objects (using php "array" notation for the query string)
serialize = function(obj, prefix) {
var str = [],
p;
for (p in obj) {
if (obj.hasOwnProperty(p)) {
var k = prefix ? prefix + "[" + p + "]" : p,
v = ob...
C# Interfaces. Implicit implementation versus Explicit implementation
...mean: IList.CopyTo would be implicitly implemented as:
public void CopyTo(Array array, int index)
{
throw new NotImplementedException();
}
and explicitly as:
void ICollection.CopyTo(Array array, int index)
{
throw new NotImplementedException();
}
The difference is that implicit impleme...
Read stream twice
....commons.io.IOUtils.copy to copy the contents of the InputStream to a byte array, and then repeatedly read from the byte array using a ByteArrayInputStream. E.g.:
ByteArrayOutputStream baos = new ByteArrayOutputStream();
org.apache.commons.io.IOUtils.copy(in, baos);
byte[] bytes = baos.toByteArray(...
C# int to byte[]
...uld try:
int intValue;
byte[] intBytes = BitConverter.GetBytes(intValue);
Array.Reverse(intBytes);
byte[] result = intBytes;
For the code to be most portable, however, you can do it like this:
int intValue;
byte[] intBytes = BitConverter.GetBytes(intValue);
if (BitConverter.IsLittleEndian)
A...
$watch'ing for data changes in an Angular directive
...eep dirty checking is expensive. So if you just need to watch the children array instead of the whole data variable the watch the variable directly.
scope.$watch('val.children', function(newValue, oldValue) {}, true);
version 1.2.x introduced $watchCollection
Shallow watches the properties of...