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How to automatically install Emacs packages by specifying a list of package names?
...puters, I'd like a way to specify a list of package names in .emacs file and then package could automatically search and install the packages, so that I don't need to install them manually by calling M-x package-list-packages . How to do that?
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how to check if List element contains an item with a Particular Property Value
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If you have a list and you want to know where within the list an element exists that matches a given criteria, you can use the FindIndex instance method. Such as
int index = list.FindIndex(f => f.Bar == 17);
Where f => f.Bar == 17 is ...
How do I list all files of a directory?
How can I list all files of a directory in Python and add them to a list ?
21 Answers
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Javascript - Track mouse position
... t mseconds. So essentially, when a page loads - this tracker should start and for (say) every 100 ms, I should get the new value of posX and posY and print it out in the form.
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How to get datetime in JavaScript?
... answered Apr 30 '14 at 17:34
Andrew MaoAndrew Mao
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C++ equivalent of java's instanceof
...e of course).
As pointed out dynamic_cast doesn't come for free. A simple and consistently performing hack that handles most (but not all cases) is basically adding an enum representing all the possible types your class can have and check whether you got the right one.
if(old->getType() == BOX...
Export and Import all MySQL databases at one time
...re than 100 MySQL databases. I want to export all of them at the same time and again import all of them into my MySQL server at one time. How can I do that?
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Is it possible to display inline images from html in an Android TextView?
...play as a generic replacement image which your program can then go through and replace with real images.
If you don't want to do this replacement yourself you can use the other Html.fromHtml() method which takes an Html.TagHandler and an Html.ImageGetter as arguments as well as the text to parse.
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Javascript communication between browser tabs/windows [duplicate]
... example, when Tab 2 starts audio playback, Tab 1 somehow knows about this and can pause it's player.
10 Answers
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How do you echo a 4-digit Unicode character in Bash?
I'd like to add the Unicode skull and crossbones to my shell prompt (specifically the 'SKULL AND CROSSBONES' (U+2620)), but I can't figure out the magic incantation to make echo spit it, or any other, 4-digit Unicode character. Two-digit one's are easy. For example, echo -e "\x55", .
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