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Centering a background image, using CSS

...nd-image:url(https://upload.wikimedia.org/wikipedia/commons/thumb/8/8b/Dore_woodcut_Divine_Comedy_01.jpg/481px-Dore_woodcut_Divine_Comedy_01.jpg); background-repeat:no-repeat; background-position: center; background-size: cover; html{ height:100% } body{ background-image:url(https://uplo...
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Javascript: Round up to the next multiple of 5

... const fn = _num =>{ return Math.round(_num)+ (5 -(Math.round(_num)%5)) } reason for using round is that expected input can be a random number. Thanks!!! ...
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How can I convert bigint (UNIX timestamp) to datetime in SQL Server?

... Also was getting an overflow, normally meaning that milliseconds are involved, solved simply as: select dbo.fn_ConvertToDateTime( src_column/1000 ) from src_table; – access_granted Jan 10 '19 at 4:42 ...
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Validate that end date is greater than start date with jQuery

... I had to modify it slightly to allow for blank end dates in my app, but this did the bulk. code if (value == 0) { return true; } else if (!/Invalid|NaN/... code – Frank Luke Jun 23 '11 at 14:48 ...
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Where is Maven' settings.xml located on mac os?

...8:00) Maven home: /usr/local/Cellar/maven/3.5.0/libexec Java version: 1.8.0_121, vendor: Oracle Corporation Java home: /Library/Java/JavaVirtualMachines/jdk1.8.0_121.jdk/Contents/Home/jre Default locale: zh_CN, platform encoding: UTF-8 OS name: "mac os x", version: "10.11.5", arch: "x86_64", family:...
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input type=“submit” Vs button tag are they interchangeable?

...an INPUT element whose type is set to "image", but the BUTTON element type allows content. So for functionality only they're interchangeable! (Don't forget, type="submit" is the default with button, so leave it off!) shar...
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How to check if command line tools is installed

I have a macbook pro with OS X 10.8.2. XCode is installed. I know this as it appears in the Applications directory. There are also the xcodebuild and xcode-select files in /usr/bin I need to know if the command line tools is installed. Is there a command for it? What can I do to see if XCode CLT is ...
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How to compare times in Python?

...use for comparison without taking the date into account: >>> this_morning = datetime.datetime(2009, 12, 2, 9, 30) >>> last_night = datetime.datetime(2009, 12, 1, 20, 0) >>> this_morning.time() < last_night.time() True ...
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Targeting position:sticky elements that are currently in a 'stuck' state

...an intersection observer to notify when elements with the class * `.sticky_sentinel--top` become visible/invisible at the top of the container. * @param {!Element} container */ function observeHeaders(container) { const observer = new IntersectionObserver((records, observer) => { for (co...
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How can I pad an int with leading zeros when using cout

...ormatted output to a string (char* or char[]) not to console directly. Actually I am writing a function that returns formatted string – shashwat Dec 23 '12 at 9:32 14 ...