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How big can a user agent string get?
...
HTTP specification does not limit length of headers at all.
However web-servers do limit header size they accept, throwing 413 Entity Too Large if it exceeds.
Depending on web-server and their settings these limits vary fr...
How to serialize Joda DateTime with Jackson JSON processor?
...n>2.1.1</version>
</dependency>
Code and documentation:
https://github.com/FasterXML/jackson-datatype-joda
Binaries:
http://repo1.maven.org/maven2/com/fasterxml/jackson/datatype/jackson-datatype-joda/
sha...
How does git compute file hashes?
...0Hello, World!' | shasum
8ab686eafeb1f44702738c8b0f24f2567c36da6d
Source: http://alblue.bandlem.com/2011/08/git-tip-of-week-objects.html
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Sublime Text 3能用支持的插件推荐 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...，快速定位括号，引号和标签内的范围。
插件下载：https://github.com/facelessuser/BracketHighlighter/tree/BH2ST3
TrailingSpacer 高亮显示多余的空格和Tab
有时候在代码结尾打多了几个空格或Tab，一般不会察觉，TrailingSpacer这款插件能高亮显...
How to swap files between windows in VIM?
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In my opinion, http://vimcasts.org/episodes/working-with-windows/ has the perfect answer for this question. In brief:
ctrl-w w cycle between the open windows
ctrl-w h focus the window to the left
ctrl-w j focus the window to the ...
Laravel Eloquent: Ordering results of all()
...name");
Check out the documentation about Collections for more details.
https://laravel.com/docs/5.1/collections
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Trying to SSH into an Amazon Ec2 instance - permission error
...key-file-name.pem
See AWS documentation for connecting to the instance:
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EC2_GetStarted.html#EC2_ConnectToInstance_Linux
How to get the difference between two arrays in JavaScript?
...not, you need to change the for loop to a for .. in loop.
function arr_diff (a1, a2) {
var a = [], diff = [];
for (var i = 0; i < a1.length; i++) {
a[a1[i]] = true;
}
for (var i = 0; i < a2.length; i++) {
if (a[a2[i]]) {
delete a[a2...
Which data type for latitude and longitude?
...t's data in degrees longitude and latitude, same as in GPS. More about it: http://epsg.io/4326
Order is Longitude, Latitude - so if you plot it as the map, it is (x, y).
To find closest point you need first to create spatial index:
create index on your_table using gist (geog);
and then request,...
xpath find if node exists
... element and look to see if the result is nil.
require 'nokogiri'
url = "http://somthing.com/resource"
resp = Nokogiri::XML(open(url))
first_name = resp.xpath("/movies/actors/actor[1]/first-name")
puts "first-name not found" if first_name.nil?
...