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How can I troubleshoot my Perl CGI script?

...rather than being buffered. You have to set this for each filehandle. Use select to change the default filehandle, like so: $|++; #sets $| for STDOUT $old_handle = select( STDERR ); #change to STDERR $|++; #sets $| for STDERR select( $old_hand...
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What is this 'Lambda' everyone keeps speaking of?

... without bloating your code unnecessarily. For example, in Ruby: (1..100).select {|num| num % 2 == 0} This will create an array containing the even numbers between 1 and 100. We don't have to write out an explicit loop — the select method takes a function that it uses to test the values, so all...
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How to cancel a pull request on github?

...e to the Original Repository where the pull request has been submitted to. Select the Pull requests tab Select your pull request that you wish to remove. This will open it up. Towards the bottom, just enter a valid comment for closure and press Close Pull Request button ...
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How to unset a JavaScript variable?

...all browsers. Running in real documents, your code examples are correct. I selected your answer as correct, but I'd appreciate it if you can edit it to include explaining window.a = 1; delete window.a; and possibly the mechanism. I can do so as well if you don't mind. – Guss ...
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Verify if a point is Land or Water in Google Maps

...ue&with_field_names=true You have to register and supply your key and selected layer number. You can search all their repository of available layers. Most of the layers are only regional, but you can find global also, like the World Coastline: When you select a layer, you click on the "Service...
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Summarizing multiple columns with dplyr? [duplicate]

... I mean, the behavior like in select would be great: summarize(df, a:c, d=paste(d, collaspe =',' ) . Just want to put more original columns in for reference – biocyberman Aug 8 '15 at 17:28 ...
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“On-line” (iterator) algorithms for estimating statistical median, mode, skewness, kurtosis?

...oints you have, in theory you only have to partially sort, e.g. by using a selection algorithm. However, that doesn't help too much with billions of values. I would suggest using frequency counts, see the next section. Median and Mode with Frequency Counts If it is integers, I would count frequenc...
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Chrome developer tools: View Console and Sources views in separate views/vertically tiled?

...Open the three-dot menu in the upper right corner of the dev tools window. Select 'Settings'. "General" tab --> "Appearance" section "Panel Layout" share | improve this answer | ...
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How to write a Unit Test?

...l,calculatedVal). Test your method by running it (in Eclipse, right click, select Run as → JUnit test). //for normal addition @Test public void testAdd1Plus1() { int x = 1 ; int y = 1; assertEquals(2, myClass.add(x,y)); } Add other cases as desired. Test that your binary sum doe...
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Is Haxe worth learning? [closed]

...mer requires PHP, or maybe that widget should be in Flash not Javascript), and this is the best case scenario. In the worst case you'll have to switch constantly, often multiple times in the same business day. Those switches can waste a lot of your time because you need to change your programming ...