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What does map(&:name) mean in Ruby?
...erts it into a Proc.
This is very useful when you want to do things point-free style. An example is to check if there is any string in an array that is equal to the string "foo". There is the conventional way:
["bar", "baz", "foo"].any? { |str| str == "foo" }
And there is the point-free way:
["...
Create a matrix of scatterplots (pairs() equivalent) in ggplot2
...e better than facet_grid in limiting the plotted area, given the scales = 'free' parameter is supplied.
require(ggplot2)
require(dplyr)
require(tidyr)
gatherpairs <- function(data, ...,
xkey = '.xkey', xvalue = '.xvalue',
ykey = '.ykey', yvalue ...
Browser statistics on JavaScript disabled [closed]
...y can easily access that information just by updating their technology for free. If it was true there was no way for them to access it, than I would agree, but I don't think that's the case. Just my opinion, but JavaScript is now a basic language of the web and I think it's time we stopped making ex...
How to architect an Ember.js application
...
Also go through this free tutorial titled Let’s Learn Ember from Tuts+ Premium. Its free because its from their free courses series.
This course, as the Tuts guys call it, is divided into fourteen easy to follow chapters.
I hope this helps.
R...
Tools to generate database tables diagram with Postgresql? [closed]
Are there any free tools to generate tables diagrams with Postgresql?
7 Answers
7
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StatusbarTools 扩展 - 状态栏自定义工具 · App Inventor 2 中文网
...《服务协议》 关注公众号，精彩不错过！ #free_v { border:none; position:fixed; top:40%; left:5px; width:200px; height:500px; display: none;}@media screen and (max-width: 700px) { #free_v { top:200%; }}
Struct Constructor in C++?
... some default values.
struct blocknode
{
unsigned int bsize;
bool free;
unsigned char *bptr;
blocknode *next;
blocknode *prev;
blocknode(unsigned int sz, unsigned char *b, bool f = true,
blocknode *p = 0, blocknode *n = 0) :
bsize(sz), free(f), b...
reStructuredText tool support
...o prettify source code. See Using Pygments in reStructuredText documents.
Free Editors
While any plain text editor is suitable to write reStructuredText documents, some editors have better support than others.
Emacs
The Emacs support via rst-mode comes as part of the Docutils package under /docu...
Why when a constructor is annotated with @JsonCreator, its arguments must be annotated with @JsonPro
...
jackson-module-parameter-names
This module allows you to get annotation-free constructor arguments when using Java 8. In order to use it you first need to register the module:
ObjectMapper mapper = new ObjectMapper();
mapper.registerModule(new ParameterNamesModule());
Then compile your code us...
Eclipse's Ctrl+click in Visual Studio?
...
If you use Visual Studio 2010, you can use the free
Visual Studio 2010 Productivity Power Tools from Microsoft to achieve this.
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