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What is Gradle in Android Studio?
...a bit confusing to me, and also for any new Android developer. Can anyone explain what Gradle in Android Studio is and what its purpose is? Why is it included in Android Studio?
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How can I use a local image as the base image with a dockerfile?
...king on a dockerfile.
I just realised that I've been using FROM with indexed images all along.
4 Answers
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How to set custom location for local installation of npm package?
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TL;DR
You can do this by using the --prefix flag and the --global* flag.
pje@friendbear:~/foo $ npm install bower -g --prefix ./vendor/node_modules
bower@0.7.0 /Users/pje/foo/vendor/node_modules/bower
*Even though this is a "global" installation, installed bins won'...
What is the memory consumption of an object in Java?
...d, though primitives must behave as if they had the official sizes.
For example, the JVM or native compiler might decide to store a boolean[] in 64-bit long chunks like a BitSet. It does not have to tell you, so long as the program gives the same answers.
It might allocate some temporary O...
Design by contract using assertions or exceptions? [closed]
...t? The two most prominent ways to do these checks are by assert and by exception .
14 Answers
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Binding a WPF ComboBox to a custom list
I have a ComboBox that doesn't seem to update the SelectedItem/SelectedValue.
4 Answers
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App Inventor 2 UrsPahoMqttClient 拓展 - 物联网轻量级MQTT协议 · App Inventor 2 中文网
...程）》
最新版拓展下载：
de.ullisroboterseite.ursai2pahomqtt.aix
MQTT（Message Queuing Telemetry Transport：消息队列遥测传输）
MQTT 发明于 1999 年，为物联网设计的轻量级协议，基于TCP协议实现。
MQTT 协议文档：https://mqtt.org/
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R script line numbers at error?
...d suggest working with the options(error) functionality. Here's a simple example:
options(error = quote({dump.frames(to.file=TRUE); q()}))
You can create as elaborate a script as you want on an error condition, so you should just decide what information you need for debugging.
Otherwise, if the...
Why do some functions have underscores “__” before and after the function name?
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Raymond also explains why you'd want the name mangling behavior starting at around 34 minutes into this video: youtube.com/watch?v=HTLu2DFOdTg
– johncip
May 26 '14 at 6:42
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How to implement a secure REST API with node.js
I start planning a REST API with node.js ,express and mongodb. The API provides data for a website (public and private area) and maybe later a mobile app. The frontend will be developed with AngularJS.
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