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How to add extra info to copied web text
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2020 Update
Solution that works on all recent browsers.
document.addEventListener('copy', (event) => {
const pagelink = `\n\nRead more at: ${document.location.href}`;
event.clipboardData.setData('text', document.getSelection() + pagelink);
eve...
How to override to_json in Rails?
...ould be separate from the rendering of the json.
Now, anytime to_json is called on an object, as_json is invoked to create the data structure, and then that hash is encoded as a JSON string using ActiveSupport::json.encode. This happens for all types: object, numeric, date, string, etc (see the Act...
How to track down log4net problems
I use log4net all the time, but one thing I've never figured out is how to tell what's going on on the inside. For example, I've got a console appender and a database appender in my project. I made a few changes to the database and the code, and now the database appender doesn't work anymore. I'll f...
Is there a way to quickly capitalize the variable name in Eclipse
...haracters, and that is hard to get right.
If you look at these, they are all either unlikely to be needed much, or too hard to do properly. Hence, it doesn't surprise me that they are not supported by the standard Eclipse codebase.
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How does password salt help against a rainbow table attack?
... attack. However, the methods I've seen to implement this don't seem to really make the problem harder.
10 Answers
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npm command to uninstall or prune unused packages in Node.js
Is there a way to simply uninstall all unused (undeclared) dependencies from a Node.js project (ones that are no longer defined in my package.json .) When I update my application I like to have the unreferenced packages removed automatically.
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Separate Back Stack for each tab in Android using Fragments
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The framework won't currently do this for you automatically. You will need to build and manage your own back stacks for each tab.
To be honest, this seems like a really questionable thing to do. I can't imagine it resulting in a decent UI -- if the back key is going to do diff...
Should I check in node_modules to git when creating a node.js app on Heroku?
... They are no longer recommending the node_modules folder be committed.
Usually, no. Allow npm to resolve dependencies for your packages.
For packages you deploy, such as websites and apps, you should use npm
shrinkwrap to lock down your full dependency tree:
https://docs.npmjs.com/cli/shrinkwrap
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Cluster analysis in R: determine the optimal number of clusters
...lidean",
method = "kmeans", min.nc=2, max.nc=15,
index = "alllong", alphaBeale = 0.1)
hist(nb$Best.nc[1,], breaks = max(na.omit(nb$Best.nc[1,])))
# Looks like 3 is the most frequently determined number of clusters
# and curiously, four clusters is not in the output at all!
If yo...
Variable declaration placement in C
I long thought that in C, all variables had to be declared at the beginning of the function. I know that in C99, the rules are the same as in C++, but what are the variable declaration placement rules for C89/ANSI C?
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