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What are Maven goals and phases and what is their difference?

...can specify a goal or a phase. If you specify a phase then maven will run all phases up to the phase you specified in order (e.g. if you specify package it will first run through the compile phase and then the test phase and finally the package phase) and for each phase it will run all goals attach...
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Render HTML to an image

... which already has a lot of answers, yet I still spent hours trying to actually do what I wanted: given an html file, generate a (png) image with transparent background from the command line Using Chrome headless (version 74.0.3729.157 as of this response), it is actually easy: "/Applications/G...
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How to append data to div using JavaScript?

... theDiv.appendChild(content); Using innerHTML: This approach will remove all the listeners to the existing elements as mentioned by @BiAiB. So use caution if you are planning to use this version. var theDiv = document.getElementById("<ID_OF_THE_DIV>"); theDiv.innerHTML += "<YOUR_CONTENT&...
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What is the usefulness of `enable_shared_from_this`?

... It enables you to get a valid shared_ptr instance to this, when all you have is this. Without it, you would have no way of getting a shared_ptr to this, unless you already had one as a member. This example from the boost documentation for enable_shared_from_this: class Y: public enable_s...
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Why not be dependently typed?

I have seen several sources echo the opinion that "Haskell is gradually becoming a dependently-typed language". The implication seems to be that with more and more language extensions, Haskell is drifting in that general direction, but isn't there yet. ...
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Is AsyncTask really conceptually flawed or am I just missing something?

...p with different solutions to it, which I am not happy with since they are all massive hacks. I still cannot believe that a class that flawed in design made it into the framework and no-one is talking about it, so I guess I just must be missing something. ...
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Google Maps V3 - How to calculate the zoom level for a given bounds

...ing zoom level you change to (roughly speaking, do you make it larger or smaller than it currently is?). If you really need to calculate the zoom, rather than store it, this should do the trick: The Mercator projection warps latitude, but any difference in longitude always represents the same frac...
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Convert integer to hexadecimal and back again

...g("x4) you get a lowercase hex value (e.g. b76). – Skalli Feb 28 '14 at 9:17 14 Am I the only one...
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How to convert object array to string array in Java

...s a work of beauty and satisfies the requirement of being able to aesthetically convert a non-String object array to an array of their toString equivalents. The currently accepted answer does not accomplish this. – b4n4n4p4nd4 Jan 11 '18 at 21:34 ...
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How do I attach events to dynamic HTML elements with jQuery? [duplicate]

Suppose I have some jQuery code that attaches an event handler to all elements with class .myclass . 8 Answers ...