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What does the “__block” keyword mean?
What exactly does the __block keyword in Objective-C mean? I know it allows you to modify variables within blocks, but I'd like to know...
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How to find the created date of a repository project on GitHub?
How can I find the created date of a project on GitHub?
8 Answers
8
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Convert UTC Epoch to local date
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32
And just for the logs, I did this using Moment.js library, which I was using for formatting any...
For each row in an R dataframe
I have a dataframe, and for each row in that dataframe I have to do some complicated lookups and append some data to a file.
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ElasticSearch: Unassigned Shards, how to fix?
...enable shard allocation.
# v0.90.x and earlier
curl -XPUT 'localhost:9200/_settings' -d '{
"index.routing.allocation.disable_allocation": false
}'
# v1.0+
curl -XPUT 'localhost:9200/_cluster/settings' -d '{
"transient" : {
"cluster.routing.allocation.enable" : "all"
}
}'
Elas...
How to convert an image to base64 encoding?
...hould be:
$path = 'myfolder/myimage.png';
$type = pathinfo($path, PATHINFO_EXTENSION);
$data = file_get_contents($path);
$base64 = 'data:image/' . $type . ';base64,' . base64_encode($data);
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How can I add new keys to a dictionary?
...gnoring the keys
Create a dictionary from two lists
data = dict(zip(list_with_keys, list_with_values))
New to Python 3.5
Creating a merged dictionary without modifying originals:
This uses a new featrue called dictionary unpacking.
data = {**data1, **data2, **data3}
New to Python 3.9...
What is the difference between the Data Mapper, Table Data Gateway (Gateway), Data Access Object (DA
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David
3,6772020 silver badges3232 bronze badges
answered May 2 '09 at 9:12
Pierce HickeyPierce Hickey
1,316...
How to specify an element after which to wrap in css flexbox? [duplicate]
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32
There is part of the spec that sure sounds like this... right in the "flex layout algorithm" an...
Counting inversions in an array
...nversion.
2a. accumulate the number of inversions to counter variable num_inversions.
2b. remove A[1] from array A and also from its corresponding position in array B
rerun from step 2 until there are no more elements in A.
Here’s an example run of this algorithm. Original array A = (6, 9, 1,...