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Auto-reload browser when I save changes to html file, in Chrome?
...assume you're not on OSX? Otherwise you could do something like this with applescript:
http://brettterpstra.com/watch-for-file-changes-and-refresh-your-browser-automatically/
There is also a plugin for chrome called "auto refresh plus" where you can specify a reload every x seconds:
https://chro...
Getting time elapsed in Objective-C
...er to use Apple's function CACurrentMediaTime!
I also benchmarked the mach_timebase_info call and it takes approximately 19ns on my iPhone 6, so I removed the (not threadsafe) code which was caching the output of that call.
#include <mach/mach.h>
#include <mach/mach_time.h>
uint64_t g...
Print the contents of a DIV
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It sometimes happens if fails to load print preview, maybe when the content to print is quite big (i noticed it only with Chrome while same page prints perfeclty in Firefox, however i dont exclude it might happen in Firefox or other browse...
What is the difference between
...l erb not to interpret the <% part of the tag which is necessary for js apps like displaying chart.js tooltips etc.
Update (Fixed broken link)
Everything about ERB can now be found here:
https://puppet.com/docs/puppet/5.3/lang_template_erb.html#tags
...
Using Pylint with Django
...unning pylint add the following flag to the command:
--load-plugins pylint_django
Detailed blog post here.
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Pandas aggregate count distinct
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How about either of:
>>> df
date duration user_id
0 2013-04-01 30 0001
1 2013-04-01 15 0001
2 2013-04-01 20 0002
3 2013-04-02 15 0002
4 2013-04-02 30 0002
>>> df.groupby("date").agg({"duration": np.sum, "use...
Create unique constraint with null columns
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Create two partial indexes:
CREATE UNIQUE INDEX favo_3col_uni_idx ON favorites (user_id, menu_id, recipe_id)
WHERE menu_id IS NOT NULL;
CREATE UNIQUE INDEX favo_2col_uni_idx ON favorites (user_id, recipe_id)
WHERE menu_id IS NULL;
This way, there can only be one combination...
Crontab - Run in directory
...om a particular directory so it can find all the files it needs, since the application has a bunch of relative paths.
1 Ans...
Replace all non-alphanumeric characters in a string
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Use \W which is equivalent to [^a-zA-Z0-9_]. Check the documentation, https://docs.python.org/2/library/re.html
Import re
s = 'h^&ell`.,|o w]{+orld'
replaced_string = re.sub(r'\W+', '*', s)
output: 'h*ell*o*w*orld'
update: This solution will exclude undersco...
Spring 3 RequestMapping: Get path value
Is there a way to get the complete path value after the requestMapping @PathVariable values have been parsed?
10 Answer...