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python max function using 'key' and lambda expression
...hat's why sometimes lambda's are used.
Note that lambda is equivalent to what you'd put in a return statement of a def. Thus, you can't use statements inside a lambda, only expressions are allowed.
What does max do?
max(a, b, c, ...[, key=func]) -> value
With a single iterable argum...
JavaScript, elegant way to check nested object properties for null/undefined [duplicate]
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Well, javascript has try-catch. Depending on what you actually need to do (i.e. what your else statement would look like if it's undefined), that may be what you want.
example:
try {
user.loc.lat.doSomething();
} catch(error) {
//report
}
...
Difference between CPPFLAGS and CXXFLAGS in GNU Make
What's the difference between CPPFLAGS and CXXFLAGS in GNU Make?
4 Answers
4
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Is there a MySQL option/feature to track history of changes to records?
...business requirement is "I want to audit the changes to the data - who did what and when?", you can usually use audit tables (as per the trigger example Keethanjan posted). I'm not a huge fan of triggers, but it has the great benefit of being relatively painless to implement - your existing code doe...
Can I Replace Apache with Node.js?
...d like to do fancier things with it—namely real-time notifications. From what I've read, Apache handles this poorly. I'm wondering if I can replace just Apache with Node.js (so instead of " LAMP " it would "LNMP").
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Wrong syntax highlighting for PHP file in PHPStorm
I don't know what happened but syntax highlighting for one php file stopped to working and also icon next to the file has changed. It shows it's text file instead of PHP .
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Remove leading or trailing spaces in an entire column of data
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If you would like to use a formula, the TRIM function will do exactly what you're looking for:
+----+------------+---------------------+
| | A | B |
+----+------------+---------------------+
| 1 | =TRIM(B1) | value to trim here |
+----+------------+------------...
How to set background color of an Activity to white programmatically?
...oot layout used, then set the background color on that. The root layout is whatever you called setContentView with.
setContentView(R.layout.main);
// Now get a handle to any View contained
// within the main layout you are using
View someView = findViewById(R.id.randomViewInMainLayout);
...
how to remove untracked files in Git?
...for ignored files(add if required)
Note: Add -n or --dry-run to just check what it will do.
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performing HTTP requests with cURL (using PROXY)
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@BipinVayalu, what do you want to check? At this way, what I describe above, the client uses the proxy "direct way", not transparently. So, the proxy gives the standard HTTP answers (including HTTP codes). If you export a wrong http_proxy ...