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`new function()` with lower case “f” in JavaScript
...rk well in all major browsers and it also seems to be fairly effective at hiding private variables. Here's an example:
3 A...
Android Preferences: How to load the default values when the user hasn't used the preferences-screen
...od has never been called in the past so you don't need to worry about overriding the user's settings each time your Activity is created
Take a look into PreferenceManager.setDefaultValues in Android API for further investigation.
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How do I delete an exported environment variable?
...tomatically every time you open terminal, try looking through the various hidden files in your home directory for it. Or, to see where it is being set, try "grep -r <X> ~" where <X> is the name of the variable. This may take a while if you have a lot of files in your home directory.
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Global and local variables in R
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Variables declared inside a function are local to that function. For instance:
foo <- function() {
bar <- 1
}
foo()
bar
gives the following error: Error: object 'bar' not found.
If you want to make bar a global variable, you should d...
Stash just a single file
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On the upside, you can turn stashes into real branches without a huge pain.
– Wes Hardaker
Jun 17 '13 at 14:14
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Use StringFormat to add a string to a WPF XAML binding
...polis It's in the docs - but if your format string starts with a {, it provides a mechanism to escape, since {} already has meaning in xaml.
– Reed Copsey
Apr 20 '16 at 19:34
5
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Error handling principles for Node.js + Express.js applications?
...ks return an error object as the first argument or null.
Express.js uses middleware and the middleware syntax uses B) and E) (mentioned below).
C) is bad practice if you ask me.
app.get('/home', function(req, res) {
// An error occurs
throw err;
});
You can easily rewrite the above as
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How to check if all elements of a list matches a condition?
...19 '12 at 14:54
Hedde van der HeideHedde van der Heide
18.2k1313 gold badges5454 silver badges9191 bronze badges
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Is git not case sensitive?
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ditto to James, @Znarkus has identified the fix for this problem on OS X, Thanks!
– Craig Nakamoto
Oct 26 '12 at 17:39
1
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Converting a column within pandas dataframe from int to string
... is not working. but df.column_name = df.column_name.astype(str) works. No idea why.
– Dmitry Konovalov
Mar 14 '18 at 1:43
1
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