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Ruby: kind_of? vs. instance_of? vs. is_a?
...
kind_of? and is_a? are synonymous.
instance_of? is different from the other two in that it only returns true if the object is an instance of that exact class, not a subclass.
Example:
"hello".is_a? Object and "hello".kind_of? Object return true because "hello" is a String and String...
css3 transition animation on load?
... navigation menu sliding into place using CSS3 only:
@keyframes slideInFromLeft {
0% {
transform: translateX(-100%);
}
100% {
transform: translateX(0);
}
}
header {
/* This section calls the slideInFromLeft animation we defined above */
animation: 1s ease-out 0s 1 slideInF...
Detecting touch screen devices with Javascript
...ouch / tap functionality. So if you have some specific styles via CSS, and from jQuery you check those elements for the mobile device style properties you could hook into them to write you mobile specific code.
See here: http://www.forabeautifulweb.com/blog/about/hardboiled_css3_media_queries/
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Is it okay to use now?
...n a mobile phone web app and I have several text fields that could benefit from <input type="tel"/> . iPhones will adjust the keyboard for the user, but I'm worried about breaking backwards compatibility. What I'm hoping is that browsers/phone that support this can assist the user and other b...
REST API Best practice: How to accept list of parameter values as input [closed]
...rly, when we want to "search" Products, our URI structure shouldn't change from "/Product/..." to "/Search/...".
Answering Your Initial Question
Regarding ["101404","7267261"] vs 101404,7267261: My suggestion here is to avoid the JSON syntax for simplicity's sake (i.e. don't require your users d...
Lombok is not generating getter and setter
...S
Find lombok Jar in ~/.m2/repository/org/projectlombok/lombok/version.x
From Command Prompt/Shell java -jar lombok-1.x.y.jar
Start STS
Thats all.
EDIT:
I did this and was still showing errors, as mentioned in the comments.
So I updated the project: right-click on project -> Maven -> U...
What are the differences between vector and list data types in R?
... of a specific type.
Another use is when representing a model: the result from lm returns a list that contains a bunch of useful objects.
d <- data.frame(a=11:13, b=21:23)
is.list(d) # TRUE
str(d)
m <- lm(a ~ b, data=d)
is.list(m) # TRUE
str(m)
Atomic vectors (non-list like, but numeric, ...
In MVC, how do I return a string result?
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You can't return a string from a method which returns an ActionResult, so in this case you return Content("") as swilliams explained. If you only ever need to return a string, then you would have the method return a string, as Phil explained.
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Converting PKCS#12 certificate into PEM using OpenSSL
I have OpenSSL x64 on Windows 7 which I downloaded from openssl-for-windows on Google Code . I'm attempting to run:
5 Answ...
Declaring variables inside or outside of a loop
...lity.
Performance doesn't matter for today's compilers.(in this scenario)
From a maintenance perspective, 2nd option is better.
Declare and initialize variables in the same place, in the narrowest scope possible.
As Donald Ervin Knuth told:
"We should forget about small efficiencies, say about...