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Check if a string is null or empty in XSLT
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How can I translate <xsl:for-each select="root/*[matches(name(.), 'grp')]"> so it can be used in VS2010?
– Si8
Oct 28 '15 at 17:21
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JavaScript open in a new window, not tab
I have a select box that calls window.open(url) when an item is selected. Firefox will open the page in a new tab by default. However, I would like the page to open in a new window, not a new tab.
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Downloading a Google font and setting up an offline site that uses it
...s" button near "Remove from collection" button and make sure that you have selected other styles you may also need such as 'bold'...
Click the 'Use' tab button on bottom right of the page
Click the download button on top with a down arrow image
Click on "zip file" on the the popup message tha...
JavaScript before leaving the page
...er if they want to leave the page or not, you cannot redirect them if they select to stay on the page. If they select to leave, the browser will go where they told it to go.
You can use onunload to do stuff before the page is unloaded, but you cannot redirect from there (Chrome 14+ blocks alerts ...
How do I rename a column in a database table using SQL?
...any other RDBMS), you can do it with regular ALTER TABLE statement:
=> SELECT * FROM Test1;
id | foo | bar
----+-----+-----
2 | 1 | 2
=> ALTER TABLE Test1 RENAME COLUMN foo TO baz;
ALTER TABLE
=> SELECT * FROM Test1;
id | baz | bar
----+-----+-----
2 | 1 | 2
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Execute SQLite script
...return to my shell script, I think this works well:
$ sqlite3 example.db 'SELECT * FROM some_table;'
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Is it possible to “await yield return DoSomethingAsync()”
... DownLoadAllUrls(string[] urls)
{
return Task.WhenAll(from url in urls select DownloadHtmlAsync(url));
}
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Best way to check for nullable bool in a condition expression (if …)
...en you are trying to evaluate a nullable bool in linq.
For example:
array.Select(v => v.nullableBool ?? false)
(from v in array where v.nullableBool ?? false)
Is cleaner in my opinion as opposed to:
array.Select(v => v.nullableBool.HasValue ? v.nullableBool.Value : false)
(from v in array wh...
What is the purpose of “android.intent.category.DEFAULT”?
...ies, then Android will present all candidates to the user and the user can select his preferred default.
Reference:
http://developer.android.com/guide/components/intents-filters.html
Extract from that page:
Android treats all implicit intents passed tostartActivity() as if they contained at ...
How add “or” in switch statements?
...sizes: 1=Small 2=Medium 3=Large");
Console.Write("Please enter your selection: ");
string s = Console.ReadLine();
int n = int.Parse(s);
int cost = 0;
switch(n)
{
case 1:
cost += 25;
break;
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