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How to create an object for a Django model with a many to many field?
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foo.bars.add(bar2)
It generates a whopping total of 7 queries:
SELECT "app_bar"."id", "app_bar"."name" FROM "app_bar" WHERE "app_bar"."id" = 1
SELECT "app_bar"."id", "app_bar"."name" FROM "app_bar" WHERE "app_bar"."id" = 2
INSERT INTO "app_foo" ("name") VALUES ()
SELECT "app_foo_bars"."bar_id" F...
How to find and return a duplicate value in array
...mparing different solutions: https://gist.github.com/naveed-ahmad/8f0b926ffccf5fbd206a1cc58ce9743e
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'git add --patch' to include new files?
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Unfortunately that won't accomplish the same purpose. What I like about git add -p is that it does not add everything, but let's me pick and choose what I want to add. This solution would blindly add everything.
– Alexander Bird
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Difference between android.app.Fragment and android.support.v4.app.Fragment
What is the difference between android.app.Fragment and android.support.v4.app.Fragment , and what are the circumstances in which each should be used?
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If I revoke an existing distribution certificate, will it mess up anything with existing apps?
I built an iOS app for an organization that has an app already on the store. After weeks of trying to get the guy who has the key to sign the app, they finally came back and said, "Just get it done!". So I am wondering how to proceed. If I go into the provisioning portal, and revoke the dist certifi...
What is App.config in C#.NET? How to use it?
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At its simplest, the app.config is an XML file with many predefined configuration sections available and support for custom configuration sections. A "configuration section" is a snippet of XML with a schema meant to store some type of informatio...
【BLE技术内幕】BLE技术揭秘 - 创客硬件开发 - 清泛IT论坛，有思想、有深度
...：TI和Noridc，来深入了解低功耗蓝牙协议栈。下图是TI的CC26系列芯片协议栈结构图，
下图是Nordic的nRF52系列芯片的协议栈结构图。
4.2.1 控制器ControllerPhysical Layer，简称：PHY，物理层。PHY层用来指定BLE所用的无线频段，调制解...
JavaScript hashmap equivalent
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@MattR Actually your example will work properly without the heaven help even with a mock hash function. I hope that other readers will real...
What does “./bin/www” do in Express 4.x?
I just started to learn about Express 4.0 in my Node.js app, and I found that it generated ./bin/www file, on which only the application server and port settings are written and everything others like middleware and routing is defined in ./app.js file.
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Express.js - app.listen vs server.listen
...tion but I simply don't get it. What is the difference between creating an app using Express.js and starting the app listening on port 1234, for example:
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