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What's the meaning of * (asterisk) in XAML ColumnDefinition?
...s definition
<Grid.ColumnDefinitions>
<ColumnDefinition Width="0.07*"/>
<ColumnDefinition Width="0.93*"/>
</Grid.ColumnDefinitions>
The first column will get 7% of the total space available and the second column would get 93%. On the other hand if you had this definiti...
jquery if div id has children
...
if ( $('#myfav').children().length > 0 ) {
// do something
}
This should work. The children() function returns a JQuery object that contains the children. So you just need to check the size and see if it has at least one child.
...
Passing a URL with brackets to curl
... |
edited Jul 2 '19 at 20:14
moveson
4,45011 gold badge99 silver badges3131 bronze badges
answered Nov...
理解和配置 Linux 下的 OOM Killer - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...rocess 9682, UID 27, (mysqld) total-vm:47388kB, anon-rss:3744kB, file-rss:80kB
httpd invoked oom-killer: gfp_mask=0x201da, order=0, oom_adj=0, oom_score_adj=0
httpd cpuset=/ mems_allowed=0
Pid: 8911, comm: httpd Not tainted 2.6.32-279.1.1.el6.i686 #1
...
21556 total pagecache pages
21049...
Set operations (union, intersection) on Swift array?
...tring> = Set(array1)
let set2:Set<String> = Set(array2)
Swift 3.0+ can do operations on sets as:
firstSet.union(secondSet)// Union of two sets
firstSet.intersection(secondSet)// Intersection of two sets
firstSet.symmetricDifference(secondSet)// exclusiveOr
Swift 2.0 can calculate on ar...
Uninstall old versions of Ruby gems
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answered Apr 27 '12 at 2:30
ohhoohho
46.6k6969 gold badges229229 silver badges368368 bronze badges
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Difference between variable declaration syntaxes in Javascript (including global variables)?
...al terms they're not usually big ones.
There's a fourth way, and as of ES2015 (ES6) there's two more. I've added the fourth way at the end, but inserted the ES2015 ways after #1 (you'll see why), so we have:
var a = 0; // 1
let a = 0; // 1.1 (new with ES2015)
const a = 0; // 1.2 (new wit...
Find Oracle JDBC driver in Maven repository
...;/groupId>
<artifactId>ojdbc14</artifactId>
<version>10.2.0.3.0</version>
...and the URL to download the file which in this case is
http://www.oracle.com/technology/software/tech/java/sqlj_jdbc/index.html.
Once you've downloaded the JAR just add it to your computer repo...
Get a filtered list of files in a directory
...
400
import glob
jpgFilenamesList = glob.glob('145592*.jpg')
See glob in python documenttion
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How to merge 2 JSON objects from 2 files using jq?
... given two objects, it will merge them recursively. For example,
jq -s '.[0] * .[1]' file1 file2
Important: Note the -s (--slurp) flag, which puts files in the same array.
Would get you:
{
"value1": 200,
"timestamp": 1382461861,
"value": {
"aaa": {
"value1": "v1",
"value2"...