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Fastest way to convert JavaScript NodeList to Array?
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Some optimizations:
save the NodeList's length in a variable
explicitly set the new array's length before setting.
access the indices, rather than pushing or unshifting.
Code (jsPerf):
var arr = [];
for (var i = 0, ref = arr.length = nl.length; i < ref; i++) {
arr[i] = nl[i];
}
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Change Image of ImageView programmatically in Android
...e programmatically, it shows new image on top of the old image which is set originally in layout file?
7 Answers
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How to save username and password with Mercurial?
... Satoru, Chris is not talking about mercurial, but about ssh: ssh can be set up so that you don't have to identify yourself using a password (as described e.g. here: debian-administration.org/articles/152).
– Tomislav Nakic-Alfirevic
Apr 6 '10 at 11:41
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PHP: Move associative array element to beginning of array
... return $new_arr;
}
Just adjust it to suit your needs, or use it and unset the index to move. Works with associative arrays too.
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Redirect to named url pattern directly from urls.py in django?
... of 'RedirectView.permanent' will change from True to False in Django 1.9. Set an explicit value to silence this warning.
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gitignore does not ignore folder
...s solution removed the remote versions of the files when pushed. I want to set up gitignore to ignore all files of a folder, not to remove it from remote. Is that possible? I have reverted the solution.
– Lajos Arpad
Jun 25 '14 at 15:42
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How can I make PHP display the error instead of giving me 500 Internal Server Error [duplicate]
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Check the error_reporting, display_errors and display_startup_errors settings in your php.ini file. They should be set to E_ALL and "On" respectively (though you should not use display_errors on a production server, so disable this and use log_errors instead if/when you deploy it). You can al...
How do I run a Ruby file in a Rails environment?
..._)
You can control the environment used (development/test/production) by setting the RAILS_ENV environment variable when running the script.
RAILS_ENV=production ruby script/test.rb
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What does “async: false” do in jQuery.ajax()?
...ng to do with
preventing other events on the page
from firing?
Yes.
Setting async to false means that the statement you are calling has to complete before the next statement in your function can be called. If you set async: true then that statement will begin it's execution and the next stat...
Hibernate lazy-load application design
...nate can't read thoughts, therefore if you know that you need a particular set of dependencies for a particular operation, you need to express your intentions to Hibernate somehow.
From this point of view, solutions that express these intentions explicitly (namely, 2, 4 and 7) look reasonable and d...