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No connection could be made because the target machine actively refused it?

...topping you. If it happens occasionally - you used the word "sometimes" - and retrying succeeds, it is likely because the server has a full 'backlog'. When you are waiting to be accepted on a listening socket, you are placed in a backlog. This backlog is finite and quite short - values of 1, 2 or...
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Insert line break inside placeholder attribute of a textarea?

... a line \nthis should be a new line'); Then you could remove it on focus and apply it back (if empty) on blur. Something like this var placeholder = 'This is a line \nthis should be a new line'; $('textarea').attr('value', placeholder); $('textarea').focus(function(){ if($(this).val() === p...
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setState vs replaceState in React.js

I am new to React.js Library and I was going over some of the tutorials and I came across: 4 Answers ...
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Convert XLS to CSV on command line

How could I convert an XLS file to a CSV file on the windows command line. 15 Answers ...
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What is the difference between Tomcat, JBoss and Glassfish?

I am starting to look into Enterprise Java and the book I am following mentions that it will use JBoss. Netbeans ships with Glassfish. I have used Tomcat in the past. ...
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How to get a Fragment to remove itself, i.e. its equivalent of finish()?

...ich then bubbles up through onActivityResult() to additionally destroy C and B. 13 Answers ...
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What is a higher kinded type in Scala?

...of polymorphism/abstraction. It means the same thing for polymorphic types and values. Concretely, a higher-order abstraction abstracts over something that abstracts over something. For types, the term "higher-kinded" is a special-purpose version of the more general "higher-order". Thus, the higher-...
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Array.Add vs +=

...ment creates a new array with the same elements as old one + the new item, and this new larger array replaces the old one in the $array-variable You can use the += operator to add an element to an array. When you use it, Windows PowerShell actually creates a new array with the values of...
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How to determine height of UICollectionView with FlowLayout

I've got an UICollectionView with an UICollectionViewFlowLayout , and i want to calculate its content size (for return in intrinsicContentSize needed for adjusting its height via AutoLayout). ...
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Eclipse “Server Locations” section disabled and need to change to use Tomcat installation

...metadata]" bit should have been replaced by something else. Open (or close and reopen) the Overview screen for the server. share | improve this answer | follow ...