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Android: java.lang.SecurityException: Permission Denial: start Intent
... android:exported
Whether or not the activity can be launched by components of other applications — "true" if it can be, and "false" if not. If "false", the activity can be launched only by components of the same application or applications with the same user ID.
The default value depen...
What is the difference between Cloud, Grid and Cluster? [closed]
... essentially smashing up many machines to make a really big & powerful one. This is a much more difficult architecture than cloud or grid to get right because you have to orchestrate all nodes to work together, and provide consistency of things such as cache, memory, and not to mention clocks. O...
Want to find records with no associated records in Rails
...
This is still pretty close to SQL, but it should get everyone with no friends in the first case:
Person.where('id NOT IN (SELECT DISTINCT(person_id) FROM friends)')
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How to add an extra column to a NumPy array
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@Outlier you should post a new question rather than ask one in the comments of this one.
– JoshAdel
Dec 10 '14 at 16:37
4
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Integer.toString(int i) vs String.valueOf(int i)
... of doing the same thing. It may be a historical reason (can't remember if one came before the other).
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Vim: Replacing a line with another one yanked before
...ak at the end
Move to the start of the target line.
V, p – replace just one target line
c, c, Ctrlr, 0, Esc
PHP case-insensitive in_array function
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you can use preg_grep():
$a= array(
'one',
'two',
'three',
'four'
);
print_r( preg_grep( "/ONe/i" , $a ) );
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How do I lowercase a string in C?
...(int i = 0; str[i]; i++){
str[i] = tolower(str[i]);
}
or if you prefer one liners, then you can use this one by J.F. Sebastian:
for ( ; *p; ++p) *p = tolower(*p);
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Why should I use a pointer rather than the object itself?
...g from a Java background and have started working with objects in C++. But one thing that occurred to me is that people often use pointers to objects rather than the objects themselves, for example this declaration:
...
Can CSS force a line break after each word in an element?
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Use
.one-word-per-line {
word-spacing: <parent-width>;
}
.your-classname{
width: min-intrinsic;
width: -webkit-min-content;
width: -moz-min-content;
width: min-content;
display: table-caption;
d...
