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Get type of all variables
In R, I'd like to retrieve a list of global variables at the end of my script and iterate over them. Here is my code
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How to output numbers with leading zeros in JavaScript [duplicate]
...und but is there a way to round left of the decimal? for example 5 becomes 05 if I specify 2 places
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How can I select rows with most recent timestamp for each key value?
I have a table of sensor data. Each row has a sensor id, a timestamp, and other fields. I want to select a single row with latest timestamp for each sensor, including some of the other fields.
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Best way to reverse a string
I've just had to write a string reverse function in C# 2.0 (i.e. LINQ not available) and came up with this:
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iOS开发过程中的各种tips - 更多技术 - 清泛网 - 专注C/C++及内核技术
...程 开发web等网络应用程序的时候，需要确认网络环境，连接情况等信息。如果没有处理它们，是不会通过apple的审查的。 系统自带的网络检查是原生的，AFNetworking也为我们添加了相关检测机制，所以这个直接在介绍AFNetworking的...
Take the content of a list and append it to another list
I am trying to understand if it makes sense to take the content of a list and append it to another list.
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How do I reference an existing branch from an issue in GitHub?
Let's say I have a branch named feature/1 . And also issue #1. I want to link that branch to that issue.
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Multi-line strings in PHP
...tion.
– ToolmakerSteve
Jul 15 at 19:05
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Repeat command automatically in Linux
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edited Nov 27 '12 at 22:05
answered Nov 27 '12 at 21:51
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How do I get bit-by-bit data from an integer value in C?
I want to extract bits of a decimal number.
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