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Convert string in base64 to image and save on filesystem in Python
...e(imagePath, 'jpeg')
return fileName
reference for complete source code: https://abhisheksharma.online/convert-base64-blob-to-image-file-in-python/
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Compelling examples of custom C++ allocators?
...llocate
methods.
Update: The memory mapping allocator is now available at https://github.com/johannesthoma/mmap_allocator and is LGPL. Feel free to use it for your projects.
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Converting from longitude\latitude to Cartesian coordinates
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Theory for convert GPS（WGS84) to Cartesian coordinates
https://en.wikipedia.org/wiki/Geographic_coordinate_conversion#From_geodetic_to_ECEF_coordinates
The following is what I am using:
Longitude in GPS（WGS84） and Cartesian coordinates are the same.
Latitude need be conv...
PostgreSQL create table if not exists
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Callback on CSS transition
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
How to drop all tables in a SQL Server database?
...'database_firewall_rules'
EXEC(@sql)
PRINT @sql
END
Taken from:
https://edspencer.me.uk/2013/02/25/drop-all-tables-in-a-sql-server-database-azure-friendly/
http://www.sqlservercentral.com/blogs/sqlservertips/2011/10/11/remove-all-foreign-keys/
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Fluid or fixed grid system, in responsive design, based on Twitter Bootstrap
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you may use this - https://github.com/chanakyachatterjee/JSLightGrid ..JSLightGrid. have a look.. I found this one really very useful. Good performance, very light weight, all important browser friendly and fluid in itself, so you don't really ...
How to get the function name from within that function?
...ld output the name of the calling constructor (eg "Foo").
More info here: https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Function/Caller
They claim it's non-standard, but also that it's supported by all major browsers: Firefox, Safari, Chrome, Opera and IE.
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How does a PreparedStatement avoid or prevent SQL injection?
...SQL Injection
attack.
You can get detailed explanation with example here:
https://javabypatel.blogspot.com/2015/09/how-prepared-statement-in-java-prevents-sql-injection.html
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How do I check out a remote Git branch?
...elta 36), reused 66 (delta 33)
Unpacking objects: 100% (69/69), done.
From https://github.com/githubuser/repo-name
e6ef1e0..5029161 develop -> origin/develop
* [new branch] demo -> origin/demo
d80f8d7..359eab0 master -> origin/master
$ git checkout demo
Branch de...