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Number of days between two NSDates [duplicate]

...mponents:NSCalendarUnitDay fromDate:fromDate toDate:toDate options:0]; return [difference day]; } EDIT: Fantastic solution above, here's Swift version below as an extension on NSDate: extension NSDate { func numberOfDaysUntilDateTime(toDateTime: NSDate, inTimeZone timeZone: NSTime...
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CSS opacity only to background color, not the text on it? [duplicate]

...;integer>s or <percentage>s, where the number 255 corresponds to 100%. A (alpha) can be a <number> between 0 and 1, or a <percentage>, where the number 1 corresponds to 100% (full opacity). RGBa example rgba(51, 170, 51, .1) /* 10% opaque green */ rgba(51, 170, 51, .4) /...
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Bring element to front using CSS

... bring images to front using CSS . I've already tried setting z-index to 1000 and position to relative, but it still fails. ...
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Placement of the ng-app directive (html vs body)

... Haralan DobrevHaralan Dobrev 7,06911 gold badge4141 silver badges6161 bronze badges ...
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Scala: What is a TypeTag and how do I use it?

... +50 A TypeTag solves the problem that Scala's types are erased at runtime (type erasure). If we wanna do class Foo class Bar extends Foo ...
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What is the difference between packaged_task and async

... | edited May 21 '18 at 10:17 answered Aug 9 '13 at 9:44 Z...
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git: How to diff changed files versus previous versions after a pull?

...D of my latest version of the file" - the commit "ID" (SHA1 hash) is that 40-character hex right at the top of every entry in the output of git log. It's the hash for the entire commit, not for a given file. You don't really ever need more - if you want to diff just one file across the pull, do git...
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Clearing all cookies with JavaScript

...ookies() { var cookies = document.cookie.split(";"); for (var i = 0; i < cookies.length; i++) { var cookie = cookies[i]; var eqPos = cookie.indexOf("="); var name = eqPos > -1 ? cookie.substr(0, eqPos) : cookie; document.cookie = name + "=;expires=Thu, ...
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How to force R to use a specified factor level as reference in a regression?

... the relevel() function. Here is an example: set.seed(123) x <- rnorm(100) DF <- data.frame(x = x, y = 4 + (1.5*x) + rnorm(100, sd = 2), b = gl(5, 20)) head(DF) str(DF) m1 <- lm(y ~ x + b, data = DF) summary(m1) Now alter the factor b in DF by use of th...
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Is there a way to programmatically scroll a scroll view to a specific edit text?

...e public void run() { your_scrollview.scrollTo(0, your_EditBox.getBottom()); } }); } share | improve this answer | follow...