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How to dump a dict to a json file?
... It throws " dumps() takes 1 positional argument but 2 were given" error
– Vijay Nirmal
Aug 8 '18 at 19:18
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show 4 more comments
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Deleting Objects in JavaScript
... doing in the background ->
http://coding.smashingmagazine.com/2012/11/05/writing-fast-memory-efficient-javascript/
It appears it may be better to null the reference than to delete it as that may change the behind-the-scenes 'class' Chrome uses.
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#include in .h or .c / .cpp?
...reason to put as little as possible in the .h is to avoid in some cases an error because of a loop of inclusion. Example: two classes need one another for their implementations, but not for their declarations. Putting both includes in the .cpps will avoid an error.
– Codoscope
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How to get MVC action to return 404
...(maybe because it has been deleted), I want to return a 404 and display an error page.
12 Answers
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get size of json object
...rsed json object. If you execute the above statements, it will give you an error 'Unexpected token o in Json'. For calculating the length of json you can directly do var length= Object.keys(json).length.
– Aayushi
Jul 16 '17 at 18:03
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Can you connect to Amazon ElastiСache Redis outside of Amazon?
I'm able to connect to an ElastiCache Redis instance in a VPC from EC2 instances . But I would like to know if there is a way to connect to an ElastiCache Redis node outside of Amazon EC2 instances, such as from my local dev setup or VPS instances provided by other vendors.
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How can I initialize base class member variables in derived class constructor?
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@David -- correct, which is a user's error, and I'm trying to get to the user's intentions, skipping superficial.
– Gene Bushuyev
Sep 13 '11 at 18:20
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How to map and remove nil values in Ruby
...-------------------------------------------
# select + map 8.569651 0.051319 8.620970 ( 8.632449)
# map + compact 7.392666 0.133964 7.526630 ( 7.538013)
# filter_map 6.923772 0.022314 6.946086 ( 6.956135)
# --------------------------------------- total: 23.093686sec
#
# ...
SQLite error 'attempt to write a readonly database' during insert?
...QLite file itself is not the same as the user running the script. Similar errors can occur if the entire directory path (meaning each directory along the way) can't be written to.
Who owns the SQLite file? You?
Who is the script running as? Apache or Nobody?
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What does this Google Play APK publish error message mean?
...blish a new version of my Android app to Google Play and get the following error?
17 Answers
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