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python list by value not by reference [duplicate]
...his high quality reply! When discussing Python often performance isn't considered and for huge data sets it makes difference.
– Artur
Aug 1 '17 at 8:06
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How can I output UTF-8 from Perl?
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I didn't know about this (I've only been putting UTF8 in a database, never printing it). +1.
– Paul Tomblin
Mar 9 '09 at 19:37
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Jump to matching XML tags in Vim
...t.vim . You can find it here: http://www.vim.org/scripts/script.php?script_id=39 . It was created pretty much the exact purpose you describe.
Install that, place your cursor on the body of the tag (not the <>, else it'll match those) and press % to jump to the other tag. See the script's page...
Can PHP PDO Statements accept the table or column name as parameter?
...dynamically and then use a switch() statement to create a white list of valid values to be used for the table name or column name. That way no user input ever goes directly into the query. So for example:
function buildQuery( $get_var )
{
switch($get_var)
{
case 1:
$tbl...
How to prevent ifelse() from turning Date objects into numeric objects
... note: I see that Hadley has built an if_else into the the magrittr/dplyr/tidyr complex of data-shaping packages.
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Change “on” color of a Switch
...e default value for colorControlActivated,
which is used to tint widgets -->
<item name="colorAccent">@color/accent</item>
<!-- You can also set colorControlNormal, colorControlActivated
colorControlHighlight, and colorSwitchThumbNormal. -->
</styl...
How should I edit an Entity Framework connection string?
...g from the app.config file, re-running the entity Data Model wizard will guide you to build a new connection.
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How to remove jar file from local maven repository which was added with install:install-file?
... The directory structure under .m2/repository is organized by Maven group ID, so you can just delete the subdirectory corresponding to the artifact you want to remove.
– Kevin Krumwiede
Aug 23 '16 at 19:33
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REST authentication and exposing the API key
...itly, secret is used to generate a sign of current request, at the server side, the server generate the sign following the same process, if the two sign matches, then the request is authenticated successfully -- so only the sign is passed through the request, not the secret.
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Limit file format when using ?
...still, the accept attribute of <input type = "file"> can help to provide a filter in the file select dialog box of the OS. For example,
<!-- (IE 10+, Edge (EdgeHTML), Edge (Chromium), Chrome, Firefox 42+) -->
<input type="file" accept=".xls,.xlsx" />
should provide a way ...