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What does a lazy val do?
I noticed that Scala provide lazy vals . But I don't get what they do.
7 Answers
7
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Git push results in “Authentication Failed”
I have been using Github for a little while and I have been fine with git add , git commit , and git push so far with no problems. Suddenly I am having an error that says:
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How to search for a part of a word with ElasticSearch
I've recently started using ElasticSearch and I can't seem to make it search for a part of a word.
10 Answers
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Compare two DataFrames and output their differences side-by-side
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The first part is similar to Constantine, you can get the boolean of which rows are empty*:
In [21]: ne = (df1 != df2).any(1)
In [22]: ne
Out[22]:
0 False
1 True
2 True
dtype: bool
Then we can see which entries have changed:
In [23]: ne_stacked = (df1 !...
Can you break from a Groovy “each” closure?
Is it possible to break from a Groovy .each{Closure} , or should I be using a classic loop instead?
6 Answers
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Where's my JSON data in my incoming Django request?
I'm trying to process incoming JSON/Ajax requests with Django/Python.
12 Answers
12
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Using a .php file to generate a MySQL dump
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You can use the exec() function to execute an external command.
Note: between shell_exec() and exec(), I would choose the second one, which doesn't return the output to the PHP script -- no need for the PHP script to get the w...
How to export collection to CSV in MongoDB?
How do you export all the records in a MongoDB collection to a .csv file?
11 Answers
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How do I use .toLocaleTimeString() without displaying seconds?
I'm currently attempting to display the user's time without displaying the seconds. Is there a way I can do this using Javascript's .toLocaleTimeString()?
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How to create an HTTPS server in Node.js?
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I found following example.
https://web.archive.org/web/20120203022122/http://www.silassewell.com/blog/2010/06/03/node-js-https-ssl-server-example/
This works for node v0.1.94 - v0.3.1. server.setSecure() is removed in newer ve...