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How do I create an average from a Ruby array?
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Some benchmarking of top solutions (in order of most efficient):
Large Array:
array = (1..10_000_000).to_a
Benchmark.bm do |bm|
bm.report { array.instance_eval { reduce(:+) / size.to_f } }
bm.report { array.sum.fdiv(array.size) }
bm.repo...
Why do you need to put #!/bin/bash at the beginning of a script file?
...t. So, if you try to run a file called foo.sh which has #!/bin/bash at the top, the actual command that runs is /bin/bash foo.sh. This is a flexible way of using different interpreters for different programs. This is something implemented at the system level and the user level API is the shebang con...
How to implement onBackPressed() in Fragments?
...work on our code BaseActivity and its fragments
Create private listener on top of your class BaseActivity
protected OnBackPressedListener onBackPressedListener;
create method to set listener in BaseActivity
public void setOnBackPressedListener(OnBackPressedListener onBackPressedListener) {
th...
Position geom_text on dodged barplot
...th argument in position_dodge? provides a more thorough description of the topic.
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CRON job to run on the last day of the month
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@G-Man Yes, you're right, and on top of that, you have it run a second time on the 29th.
– Matt
Oct 26 '19 at 22:15
add a comment
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How to convert JSON data into a Python object
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it'd just be topLevelData['education']['name1'] ==> 456. make sense?
– Shakakai
Jul 5 '11 at 7:31
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Best way to store JSON in an HTML attribute?
...r JSON use the script type "application/json". Also it is nice to have the top level as an object in the long run.
– OIS
Oct 19 '15 at 14:21
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Library not loaded: /usr/local/opt/readline/lib/libreadline.6.2.dylib
... I had luck with 'brew switch readline 6.3.8'
– Christopher Johnson
Jun 15 '17 at 20:17
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If you ...
Programmatically add custom event in the iPhone Calendar
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Swift 4.0 implementation :
use import in top of page by import EventKit
then
@IBAction func addtoCalendarClicked(sender: AnyObject) {
let eventStore = EKEventStore()
eventStore.requestAccess( to: EKEntityType.event, completion:{(granted, error) in
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mysql command for showing current configuration variables
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Yeah, it's a truism that the top-rated item is not the best, it's just the first
– Dave Hilditch
Apr 23 '17 at 11:09
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