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How to randomly select rows in SQL?
...
SELECT TOP 5 Id, Name FROM customerNames
ORDER BY NEWID()
That said, everybody seems to come to this page for the more general answer to your question:
Selecting a random row in SQL
Select a random row with MySQL:
SELECT column FROM table
ORDER BY RAND()
LIMIT 1
Selec...
Use HTML5 to resize an image before upload
...n image has been loaded');
// Load the image
var reader = new FileReader();
reader.onload = function (readerEvent) {
var image = new Image();
image.onload = function (imageEvent) {
// Resize the image
var canvas = docu...
How can I change a file's encoding with vim?
... thank you! Apache was outputting utf-8, so was php, so the browser said, so vim said with set encoding, and still the pages showed mangled characters that were alright as iso-8859-1. using set fileencoding showed a pretty 'Latin1'
– Adriano Varoli Piazza
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Fastest way to copy file in node.js
...require('fs');
fs.createReadStream('test.log').pipe(fs.createWriteStream('newLog.log'));
In node v8.5.0, copyFile was added
const fs = require('fs');
// destination.txt will be created or overwritten by default.
fs.copyFile('source.txt', 'destination.txt', (err) => {
if (err) throw err;
...
What's the difference between ASCII and Unicode?
...t? Greek? Russian? Chinese and the likes?
We would have needed an entirely new character set... that's the rational behind Unicode. Unicode doesn't contain every character from every language, but it sure contains a gigantic amount of characters (see this table).
You cannot save text to your hard dr...
Java Byte Array to String to Byte Array
... = response.substring(1, response.length() - 1).split(",");
byte[] bytes = new byte[byteValues.length];
for (int i=0, len=bytes.length; i<len; i++) {
bytes[i] = Byte.parseByte(byteValues[i].trim());
}
String str = new String(bytes);
** EDIT **
You get an hint of your problem in your ...
What happens to C# Dictionary lookup if the key does not exist?
...
If you're just checking before trying to add a new value, use the ContainsKey method:
if (!openWith.ContainsKey("ht"))
{
openWith.Add("ht", "hypertrm.exe");
}
If you're checking that the value exists, use the TryGetValue method as described in Jon Skeet's answer.
...
How do you configure an OpenFileDialog to select folders?
... short C# module). Free. MS-Public license.
Code to use it:
var dlg1 = new Ionic.Utils.FolderBrowserDialogEx();
dlg1.Description = "Select a folder to extract to:";
dlg1.ShowNewFolderButton = true;
dlg1.ShowEditBox = true;
//dlg1.NewStyle = false;
dlg1.SelectedPath = txtExtractDirectory.Text;
dl...
Why would an Enum implement an Interface?
...red Apr 25 '10 at 19:34
Brian AgnewBrian Agnew
248k3535 gold badges309309 silver badges420420 bronze badges
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Way to ng-repeat defined number of times instead of repeating over array?
...
Update (9/25/2018)
Newer versions of AngularJS (>= 1.3.0) allow you to do this with only a variable (no function needed):
<li ng-repeat="x in [].constructor(number) track by $index">
<span>{{ $index+1 }}</span>
</li&...