大约有 40,000 项符合查询结果（耗时：0.0507秒） [XML]
Unique ways to use the Null Coalescing operator [closed]
...he function close in cache. On the other hand: en.wikipedia.org/wiki/Global_value_numbering
– TinyTimZamboni
Feb 17 '16 at 18:24
|
show 1 mo...
Android ViewPager - Show preview of page on left and right
...em visible
val nextItemVisiblePx = resources.getDimension(R.dimen.viewpager_next_item_visible)
val currentItemHorizontalMarginPx = resources.getDimension(R.dimen.viewpager_current_item_horizontal_margin)
val pageTranslationX = nextItemVisiblePx + currentItemHorizontalMarginPx
val pageTransformer = V...
Change the image source on rollover using jQuery
...
var src = $(this).attr("src");
var regex = /_normal.svg/gi;
src = this.src.replace(regex,'_rollover.svg');
$(this).attr("src", src);
})
.mouseout(function() {
var src = $(this).attr("src");
...
JComboBox Selection Change Listener?
....setBounds(84, 45, 150, 20);
contentPane.add(comboBox);
JComboBox comboBox_1 = new JComboBox();
comboBox_1.setBounds(84, 97, 150, 20);
contentPane.add(comboBox_1);
comboBox.addItemListener(new ItemListener() {
public void itemStateChanged(ItemEvent arg0) {
//Do Something
}
});
...
Fastest way to extract frames using ffmpeg?
... video 38m07s long:
time ffmpeg -i input.mp4 -filter:v fps=fps=1/60 ffmpeg_%0d.bmp
1m36.029s
This takes long because ffmpeg parses the entire video file to get the desired frames.
time for i in {0..39} ; do ffmpeg -accurate_seek -ss `echo $i*60.0 | bc` -i input.mp4 -frames:v 1 period_down_$i....
Why can't you modify the data returned by a Mongoose Query (ex: findById)
...d(req.params.id).lean().exec(function(err, data){
var len = data.survey_questions.length;
var counter = 0;
_.each(data.survey_questions, function(sq){
Question.findById(sq.question, function(err, q){
sq.question = q;
if(++counter == len) {
...
No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?
...l, I only can see the jre7. Do you know why?
– diyoda_
Feb 26 '14 at 3:50
5
It could possibly be ...
postgresql list and order tables by size
...
select table_name, pg_relation_size(quote_ident(table_name))
from information_schema.tables
where table_schema = 'public'
order by 2
This shows you the size of all tables in the schema public if you have multiple schemas, you might wan...
Using the rJava package on Win7 64 bit with R
...l find the jvm.dll automatically, without manually setting the PATH or JAVA_HOME. However note that:
To use rJava in 32-bit R, you need Java for Windows x86
To use rJava in 64-bit R, you need Java for Windows x64
To build or check R packages with multi-arch (the default) you need to install both ...
How to convert all tables from MyISAM into InnoDB?
...e first
//
// Actual code starts here
$sql = "SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_SCHEMA = 'your_database_name'
AND ENGINE = 'MyISAM'";
$rs = mysql_query($sql);
while($row = mysql_fetch_array($rs))
{
$tbl = $row[0];
...