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How to hide the keyboard when I press return key in a UITextField?
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adding <UITextFieldDelegate> in .h file and set delegate in viewdidload [yourTextField setDelegate:self]; will complete it!
– Umit Kaya
Jul 16 '15 at 5:35
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How to insert newline in string literal?
...line" + Environment.NewLine + "second line";
String interpolation (in C#6 and above):
string x = $"first line{Environment.NewLine}second line";
You could also use \n everywhere, and replace:
string x = "first line\nsecond line\nthird line".Replace("\n",
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SELECT DISTINCT on one column
....WHERE SKU LIKE 'FOO%') a WHERE a.RowNumber = 1
– Andre Nel
Jun 21 '17 at 11:46
This works although it's not a CTE ...
Get index of array element faster than O(n)
Given I have a HUGE array, and a value from it. I want to get index of the value in array. Is there any other way, rather then call Array#index to get it? The problem comes from the need of keeping really huge array and calling Array#index enormous amount of times.
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How to get CRON to call in the correct PATHs
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I used /etc/crontab. I used vi and entered in the PATHs I needed into this file and ran it as root. The normal crontab overwrites PATHs that you have set up. A good tutorial on how to do this.
The systemwide cron file looks like this:
This has the userna...
How does the bitwise complement operator (~ tilde) work?
...representation of a number, taking its complement (inverting all the bits) and adding one. Two starts as 0000 0010, and by inverting the bits we get 1111 1101. Adding one gets us the result above. The first bit is the sign bit, implying a negative.
So let's take a look at how we get ~2 = -3:
Here's ...
How to show the “Are you sure you want to navigate away from this page?” when changes committed?
...tempt to navigate away from the page, a javascript confirm button shows up and asks: "Are you sure you want to navigate away from this page?" blee blah bloo...
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How to watch for a route change in AngularJS?
...onChangeSuccess
See What's the difference between $locationChangeSuccess and $locationChangeStart?
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Read connection string from web.config
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You need to add a reference to System.Configuration and then use:
System.Configuration.ConfigurationManager.
ConnectionStrings["connectionStringName"].ConnectionString;
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Select all DIV text with single mouse click
...ted so the user doesn't need to manually highlight the text with the mouse and potentially miss a bit of the text?
12 Answe...