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Perform .join on value in array of objects
...rscore.js which has tons of utilities for dealing with arrays, collections etc.
With underscore you could do this easily with one line of code:
_.pluck(arr, 'name').join(', ')
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Difference between abstraction and encapsulation?
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Encapsulation means-hiding data like using getter and setter etc.
Abstraction means- hiding implementation using abstract class and interfaces etc.
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Best data type for storing currency values in a MySQL database
...the transactions (let's suppose $100.23) and multiple by 100, 1000, 10000, etc. to get the accuracy you need. So if you only need to store cents and can safely round up or down, just multiply by 100. In my example, that would make 10023 as the integer to store. You'll save space in the database and ...
How do you debug a regex? [closed]
...er programming languages that also adhere to the PCRE standard (Perl, PHP, etc...).
(...)
Runs on Linux, Unix, Windows, Mac.
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What is the difference between a map and a dictionary?
...can erase an element and test for membership in array, vector, list, deque etc, but the container interfaces don't directly support that because finding an element is spectacularly inefficient at O(N), in some cases insert/erase is inefficient, and supporting those operations undermines the delibera...
Commands out of sync; you can't run this command now
I am trying to execute my PHP code, which calls two MySQL queries via mysqli, and get the error "Commands out of sync; you can't run this command now".
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Search for all occurrences of a string in a mysql database [duplicate]
...verflow.com%'
select * from table2 where col3 like '%stackoverflow.com%'
etc.
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How to get past the login page with Wget?
...=foo&password=bar' \
--delete-after \
http://server.com/auth.php
# Now grab the page or pages we care about.
wget --load-cookies cookies.txt \
http://server.com/interesting/article.php
Make sure the --post-data parameter is properly percent-encoded (especially ampersands!) or t...
How to set a value to a file input in HTML?
..., only to select the local, cached image that they just resized, modified, etc.. But it should work for any file type.
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How can I output leading zeros in Ruby?
...imilar formating functions are available in perl, ruby, python, java, php, etc.
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