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How to find the length of a string in R
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Or use stri_length from stringi - it works fine with NA's and it is faster :) Check my post!
– bartektartanus
Apr 4 '14 at 16:37
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How to remove ASP.Net MVC Default HTTP Headers?
...how-to-remove-server-x-aspnet-version-x-aspnetmvc-version-and-x-powered-by-from-the-response-header-in-iis7.
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Subset of rows containing NA (missing) values in a chosen column of a data frame
We have a data frame from a CSV file. The data frame DF has columns that contain observed values and a column ( VaR2 ) that contains the date at which a measurement has been taken. If the date was not recorded, the CSV file contains the value NA , for missing data.
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Why can I type alias functions and use them without casting?
...stinction which is not clear in lytnus's answer.
Named Type is different from Unnamed Type.
Variable of Named Type is assignable to variable of Unnamed Type, vice versa.
Variable of different Named Type is not assignable to each other.
http://play.golang.org/p/uaYHEnofT9
import (
"fmt"
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How do I wait for an asynchronously dispatched block to finish?
...e synchronously. Worse I've seen many of them use this semaphore technique from the main queue (and we should never block the main queue in production apps).
I know this isn't the case here (when this question was posted, there wasn't a nice tool like XCTestExpectation; also, in these testing suite...
How to click first link in list of items after upgrading to Capybara 2.0?
...ar one. You should be able to match with this.
A working example example from one of my projects:
within page.find("div.panel", text: /Proposals/) do
within page.find('tr', text: /Foo/) do
page.should have_xpath('td[3]', text: @today)
end
end
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Aligning UIToolBar items
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This can also be done right from a storyboard.
Just drag and drop items in the toolbar, and turn some of them into flexible or fixed space to get the desired effect. See the two examples below.
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What is resource-ref in web.xml used for?
...esources in the web.xml has the advantage of separating the developer role from the deployer role. In other words, as a developer, you don't have to know what your required resources are actually called in production, and as the guy deploying the application, you will have a nice list of names to ma...
Javascript: How to detect if browser window is scrolled to bottom?
...pted answer is that window.scrollY is not available in IE.
Here is a quote from mdn regarding scrollY:
For cross-browser compatibility, use window.pageYOffset instead of window.scrollY.
And a working snippet:
window.onscroll = function(ev) {
if ((window.innerHeight + window.pageYOffset ) &...
C# HttpWebRequest vs WebRequest
...right. It would have been nice if there was a way to get a HttpWebRequest from either HttpWebRequest.Create or something like HttpWebRequest.CreateHttp without casting. The first would be something like public new static HttpWebRequest Create(string url). Either way, if the url wasn't HTTP(s), it...