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Ruby Metaprogramming: dynamic instance variable names
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This is actually a really great way to do it since this is pretty much what Struct is made for.
– Chuck
Jul 19 '11 at 5:37
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How do you push just a single Git branch (and no other branches)?
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By default git push updates all the remote branches. But you can configure git to update only the current branch to it's upstream.
git config push.default upstream
It means git will update only the current (checked out) branch when you do git push.
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is it possible to change values of the array when doing foreach in javascript?
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The callback is passed the element, the index, and the array itself.
arr.forEach(function(part, index, theArray) {
theArray[index] = "hello world";
});
edit — as noted in a comment, the .forEach() function can take a second...
How to force a web browser NOT to cache images
...(date, place, title, description, links, etc.) and save it. On that form I allow the administrator to upload an image related to the event. On the HTML page displaying the form, I am also showing a preview of the picture uploaded (HTML img tag).
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How to pass parameters to a modal?
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+1 Since this allows for passing data without having to define a controller for the modal. BTW you can just do $scope.$new(true) to create a new isolated scope without the need to inject $rootScope.
– Santosh
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How to compare two floating point numbers in Bash?
...true or false.
Please, ensure that the bc basic calculator package is installed.
This equally works for floats in scientific format, provided a capital letter E is employed, e.g. num1=3.44E6
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JavaScript query string [closed]
...possibility of an array in a query string that is represented as such ?val=foo&val=bar&val=baz how would you accomodate this?
– Russ Bradberry
Dec 30 '10 at 21:24
2
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Script parameters in Bash
...at can make it easier to parse named arguments on the command line, but usually for simple shell scripts you should just use the easy way, if it's no problem.
Then you can do:
/usr/local/bin/abbyyocr9 -rl Swedish -if "$1" -of "$2" 2>&1
The double quotes around the $1 and the $2 are not al...
Alias with variable in bash [duplicate]
...ork, but if the following:
In ~/.bashrc add:
sendpic () { scp "$@" mina@foo.bar.ca:/www/misc/Pictures/; }
Save the file and reload
$ source ~/.bashrc
And execute:
$ sendpic filename.jpg
original source: http://www.linuxhowtos.org/Tips%20and%20Tricks/command_aliases.htm
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What are the differences between vector and list data types in R?
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Technically lists are vectors, although very few would use that term. "list" is one of several modes, with others being "logical", "character", "numeric", "integer". What you are calling vectors are "atomic vectors" in strict R parl...