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Read first N lines of a file in python
...Nlines
One advantage compared to the other answers is the possibility to select easily the range of lines e.g. skipping the first 10 lines [10:30] or the lasts 10 [:-10] or taking only even lines [::2].
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How do you automatically set the focus to a textbox when a web page loads?
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IMHO, the 'cleanest' way to select the First, visible, enabled text field on the page, is to use jQuery and do something like this:
$(document).ready(function() {
$('input:text[value=""]:visible:enabled:first').focus();
});
Hope that helps...
Than...
The smallest difference between 2 Angles
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a one line simple solution and solved for me(not the selected answer ;) ). but tan inverse is a costly process.
– Mohan Kumar
Jun 20 '16 at 16:32
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How to exit a 'git status' list in a terminal?
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The pager used by git is selected by core.pager configuration variable (if it is set), then GIT_PAGER enviroment variable, then PAGER environment variable, then less as fallback.
– Jakub Narębski
Nov 8 '09 at ...
Storing images in SQL Server?
...n stay lean and mean and very efficient, assuming you don't always need to select the employee photo, too, as part of your queries.
For filegroups, check out Files and Filegroup Architecture for an intro. Basically, you would either create your database with a separate filegroup for large data stru...
How to customize the background color of a UITableViewCell?
...override state-based properties set
earlier by the table view, such as
selection and background color. After
the delegate returns, the table view
sets only the alpha and frame
properties, and then only when
animating rows as they slide in or
out."
I've found this information in this ...
Cannot obtain value of local or argument as it is not available at this instruction pointer, possibl
...fixed it for me in VS2017 Community! No idea when or how this option got deselected...
– Ian Kemp
Dec 25 '18 at 21:05
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MySQL ON DUPLICATE KEY - last insert id?
...LAST_INSERT_ID(3000)) ON DUPLICATE KEY UPDATE id = LAST_INSERT_ID(id + 1);
SELECT LAST_INSERT_ID();
If the prefix exists, it will increment it and populate last_insert_id.
If the prefix does not exist, it will insert the prefix with the value 3000 and populate last_insert_id with 3000.
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Parser Error Message: Could not load type 'TestMvcApplication.MvcApplication'
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For me, the problem was that i had accidently select x86 as active platform, and for this configuration the project settings was wrong (Bin\Debug\x86). Changing back to Any CPU fixed the problem. But changing the output path also worked.
– Lars Uden...
“cannot resolve symbol R” in Android Studio
... compileSdkVersion 21
buildToolsVersion '21.0.1'
......
....
}
Or
Select File | Project Structure change Build Tools Version to 21.1.1
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