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How can I delete multiple lines in vi?
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I find this easier
Go VISUAL mode Shift+v
Select lines
d to delete
https://superuser.com/questions/170795/how-can-i-select-and-delete-lines-of-text-in-vi
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Warning :-Presenting view controllers on detached view controllers is discouraged
...s programming guide to learn more on how to use view controllers properly. https://developer.apple.com/library/content/featuredarticles/ViewControllerPGforiPhoneOS/
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Easiest way to copy a table from one database to another?
...u can do
CREATE TABLE new_tbl LIKE orig_tbl;
Refer documentation here: https://dev.mysql.com/doc/refman/5.7/en/create-table-like.html
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Getting a timestamp for today at midnight?
...rt->getTimestamp();
Potential definitions of “here” are listed at https://secure.php.net/manual/en/timezones.php
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Jquery live() vs delegate() [duplicate]
...t turns around and calls .live(), but passes the extra context parameter.
https://github.com/jquery/jquery/blob/master/src/event.js#L948-950
As such, I'd always use .delegate(). If you really need for it to process all events on the page, then just give it the body as the context.
$(document.body...
MySQL with Node.js
...){-
handle_database(req,res);
});
app.listen(3000);
Reference : https://codeforgeek.com/2015/01/nodejs-mysql-tutorial/
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reformat in vim for a nice column layout
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This is a great answer using vim macros: https://stackoverflow.com/a/8363786/59384 - basically, you start recording a macro, format the first column, stop recording then repeat the macro for all remaining lines.
Copy/pasted from that answer:
qa0f:w100i <Esc>...
Convert JS date time to MySQL datetime
...YY-MM-DD HH:mm:ss');
For a lightweight alternative to momentjs, consider https://github.com/taylorhakes/fecha
require('fecha').format('YYYY-MM-DD HH:mm:ss')
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Google App Engine: Is it possible to do a Gql LIKE query?
...tore.
Details in the announcement.
More information on how to use this: https://cloud.google.com/appengine/training/fts_intro/lesson2
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Is there a way to check which CSS styles are being used or not used on a web page?
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Try using this tool,which is just a simple js script https://github.com/shashwatsahai/CSSExtractor/ This tool helps in getting the CSS from a specific page listing all sources for active styles and save it to a JSON with source as key and rules as value. It loads all the CSS fr...