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Does Swift support reflection?
...me"
reflect(Fruit())[0].1.summary // "Apple"
From mchambers gist, here:
https://gist.github.com/mchambers/fb9da554898dae3e54f2
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Mean per group in a data.frame [duplicate]
...columns 3 and 4 of data.frame d, grouping by d$Name, and applying the mean function.
Or, using a formula interface:
aggregate(. ~ Name, d[-2], mean)
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Error when trying to obtain a certificate: The specified item could not be found in the keychain
...k, or the default will include whatever's in the brackets [].
Common Name (CN) should be your private key name (e.g., John Doe Dev Key)
Email Address should be your email address (e.g. thon@example.com)
Everything else should be blank
Verify your CSR
$ openssl req -noout -text -in Certificates.cs...
How to use shell commands in Makefile
...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...
What's the fastest way to convert String to Number in JavaScript?
...g console: http://jsfiddle.net/TrueBlueAussie/j7x0q0e3/22/
var values = ["123",
undefined,
"not a number",
"123.45",
"1234 error",
"2147483648",
"4999999999"
];
for (var i = 0; i < values.length; i++){
var x = values[i];
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How do I do an OR filter in a Django query?
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This might be useful https://docs.djangoproject.com/en/dev/topics/db/queries/#spanning-multi-valued-relationships
Basically it sounds like they act as OR
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Finding a substring within a list in Python [duplicate]
Example list: mylist = ['abc123', 'def456', 'ghi789']
5 Answers
5
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linux svn搭建配置及svn命令详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...指定端口号，默认为3690）
1、安装
[root@www ~]# yum install subversion
[root@www ~]# svn -v 判断是否安装成功
svnserve, version 1.6.11 (r934486) 出现类型提示，说明安装成功。
有了SVN软件后还需要建立SVN库。
[root...
Delete all local git branches
...nsertions(+), 0 deletions(-)
create mode 100644 README
$ git branch Story-123-a
$ git branch Story-123-b
$ git branch Story-123-c
$ git branch --merged
Story-123-a
Story-123-b
Story-123-c
* master
$ git branch --merged | grep -v \* | xargs
Story-123-a Story-123-b Story-123-c
$ git branch --me...
Two sets of parentheses after function call
...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...