period

I'm new to html and web coding in general. What do the periods before variables indicate in the following code? <style> <!-- Modify these styles --> .page_title {font-weight:bold} .page_text {color:#000000} </style> ... JS code Thanks Couto those are not variables. Those are CSS Selectors, and they represent a HTML node with that class per example <div class="page_title">Page Title</div> You use CSS Selectors to style those elements in the HTML Since they've suggested. =) There are a few ways to reference HTML nodes in CSS, the most common are ID's, Classes and the tag name. take a look at

I simply need to know how I can detect repeating decimal expansion in floats. Example: 0.123456789123456789 The repeating portion of the number would be 123456789. I want to automatize this in C#, is there any smart solution? There's a nice trick for calculating rational approximations to a given float (based on some properties of Euclid's algorithm for GCDs). We can use this to determine whether or not the "best" approximation is of the form A/(2^a 5^b) , if it is then the float terminates (in base 10), if not it will have some repeating component. The tricky bit will be determining which of

With "lubridate" package in R, I can find out if two time periods overlapped. but Is there an efficient way to compute for how many days they overlapped. (for instance how many days a women smoked while pregnant. the pregnancy period and smoking period may overlap totally, partially or not at all) Here is an example with three women: preg_start<-as.Date(c("2011-01-01","2012-01-01","2013-01-01")) preg_end<-preg_start+270 # end after 9 months smoke_start<-as.Date(c("2011-02-01","2012-08-01","2014-01-01")) smoke_end<-smoke_start+100 # all three smoked 100 days data<-data.frame(cbind(preg_start

I want to call an arbitrary function every n seconds. Basically I want something identical to SetInterval from Javascript. How can I achieve this in Scala? You could use standard stuff from java.util.concurrent : import java.util.concurrent._ val ex = new ScheduledThreadPoolExecutor(1) val task = new Runnable { def run() = println("Beep!") } val f = ex.scheduleAtFixedRate(task, 1, 1, TimeUnit.SECONDS) f.cancel(false) Or java.util.Timer : val t = new java.util.Timer() val task = new java.util.TimerTask { def run() = println("Beep!") } t.schedule(task, 1000L, 1000L) task.cancel() If you happen

I'm fairly new to PHP, but I can't seem to find the solution to this question in google. Here is some example code: $headers = 'From: webmaster@example.com' . "\r\n" . 'Reply-To: webmaster@example.com' . "\r\n" . 'X-Mailer: PHP/' . phpversion(); what does the period character do in the middle of each piece of the string? ie: "blabla" . "blabla" . "blablalba"; onteria_ This operator is used to combine strings. EDIT Well, to be more specific if a value is not a string, it has to be converted to one. See Converting to a string for a bit more detail. Unfortunately it's sometimes mis-used to the

The Period class in java.time handles only the date-oriented potion: years, months, days. What about the time portion: hours, minutes, seconds? How can we parse and generate string representations of full periods as defined in ISO 8601 , PnYnMnDTnHnMnS ? For example, a day and a half: P1DT12H . The academic year is nine months, P9M . Every year I get two weeks and 3 days of vacation, P17D . The customer occupied the hotel room for 2 days and seventeen and a half hours, P2DT17H30M . The Period class in Joda-Time handles full period. Why not in java.time? Is there some other mechanism? In Java

I'm trying to find the weekly periods for a given month and year. Dates should start on a Monday and end on a Sunday. If the 1st of the month is a Sunday (Ex May 2011), it should be the first element. May 2011 May 1 (Sunday) May 2 - May 8 (Monday - Sunday) May 9 - May 15 (Monday - Sunday) May 17 - Ma6y 22 (Monday - Sunday) May 23 - May 29 (Monday - Sunday) May 30 - May 31 (Monday - Tuesday) September 2012 September 1 - September 2 September 3 - September 9 September 10 - September 16 September 17 - September 23 September 24 - September 30 I am using this function to calculate the week numbers

I'm getting data from an array. For some reason the array has key values like [3.3] which I'm having trouble retrieving data from. I have this array [3.3] => First Name [3.6] => Last Name[2] => email@example.com . When I try to call $array[3.3] it returns null, but when I call $array[2] I am given the e-mail. Any ideas? Use single quotes when referencing the key value (basically treat it like a string, that's what PHP is probably doing) echo $array['3.3']; From php manual : Floats in key are truncated to integer. So you're trying to get $array[3] which does not exist, so you get Null A key may