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Rails nested form with has_many :through, how to edit attributes of join model?
...ernet for an association like this was such a pain at the time -- maybe my google-fu was off that day. I wanted to at least document it here as I as my co-worker and I just assumed rails converted linked_attributes to an array, instead of a zero indexed hash. Hopefully this tidbit helps someone in t...
How to detect Safari, Chrome, IE, Firefox and Opera browser?
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Googling for browser reliable detection often results in checking the User agent string. This method is not reliable, because it's trivial to spoof this value.
I've written a method to detect browsers by duck-typing.
Only use...
EC2 instance types's exact network performance?
... in particular for many of the benchmarks (note that those two links go to google searches showing the numerous individual benchmarks).
Caveats & Notes:
The large instance size has the most variation reported:
m1.large is ~800 Mbit/s (!!!)
t2.large = ~500 MBit/s
c3.large = ~500-570 Mbit/s (d...
jquery data selector
...e]') would not be correct.
You'll need to use the data plugin http://code.google.com/p/jquerypluginsblog/, use Dmitri's filter solution, or do a $.each over all the elements and check .data() iteratively
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JSON formatter in C#?
... Yours is nice too except one minor bug: "url":"url('http://google.com')" format to "url":"url('http : //google.com')". spaces are added before and after the second ":" which is wrong.
– Peter Long
Jun 5 '11 at 2:13
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Ruby on Rails: How do I add a not null constraint to an existing column using a migration?
...tables in my database but I forgot to add a few not null constraints. I've googled around but I can't find how to write a migration which adds not null to an existing column.
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What are the lesser known but useful data structures?
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Google cites the use of Bloom filters in there implementation of BigTable.
– Brian Gianforcaro
May 22 '10 at 23:33
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if a ngSrc path resolves to a 404, is there a way to fallback to a default?
...ce the src. (Plunker)
Html:
<img ng-src="smiley.png" err-src="http://google.com/favicon.ico" />
Javascript:
var app = angular.module("MyApp", []);
app.directive('errSrc', function() {
return {
link: function(scope, element, attrs) {
element.bind('error', function() {
...
What is the _snowman param in Ruby on Rails 3 forms for?
...why a user would decide to do something seemingly so crazy, check out this google search. Once the user has put the web-site into Latin-1 mode, if they use characters that can be understood as both Latin-1 and Unicode (for instance, é or ç, common in names), Internet Explorer will encode them in L...
Is a RelativeLayout more expensive than a LinearLayout?
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In a talk at Google I/O 2013 (Writing Custom Views for Android), Romain Guy clarified the misunderstanding that caused everyone to start using RelativeLayouts for everything. A RelativeLayout always has to do two measure passes. Overall i...