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Python list of dictionaries search
...: 'Pam'}
If you need to handle the item not being there, then you can do what user Matt suggested in his comment and provide a default using a slightly different API:
next((item for item in dicts if item["name"] == "Pam"), None)
And to find the index of the item, rather than the item itself, yo...
Why is volatile not considered useful in multithreaded C or C++ programming?
...e, we simply set the flag after preparing the data, so all looks fine. But what if the instructions are reordered so the flag is set first?
volatile does guarantee the first point. It also guarantees that no reordering occurs between different volatile reads/writes. All volatile memory accesses wi...
Formatting Decimal places in R
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What's with the quotes that appear?
– F.Webber
May 31 '17 at 16:14
2
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android: stretch image in imageview to fit screen
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I know this is what you wanted, but for images where you care about aspect ratio, this will stretch it out.
– Artem Russakovskii
Nov 15 '11 at 1:39
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Which is the best library for XML parsing in java [closed]
...) and which fields are elements(@XmlElement) or attributes (@XmlAttribute, what a surprise!)
public static void parse() throws JAXBException, IOException {
try (FileInputStream adrFile = new FileInputStream("test")) {
JAXBContext ctx = JAXBContext.newInstance(RootElementClass.class);
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How many threads can a Java VM support?
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This depends on the CPU you're using, on the OS, on what other processes are doing, on what Java release you're using, and other factors. I've seen a Windows server have > 6500 Threads before bringing the machine down. Most of the threads were not doing anything, of cours...
What's faster, SELECT DISTINCT or GROUP BY in MySQL?
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@ThanhTrung: what is slower than what?
– Quassnoi
Jun 7 '19 at 11:12
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List comprehension on a nested list?
... for y in x] for x in l]
This would give you a list of lists, similar to what you started with except with floats instead of strings. If you want one flat list then you would use [float(y) for x in l for y in x].
share
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Disable browser's back button
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Note that making the page un-cacheable does not achieve what the OP wanted: to disable visiting pages using the back button. Even if a browser obeys no-cache when using the back button (which browsers are not obliged to do AFAIK) they still provide a way to reload that page (usua...
How to capitalize the first letter in a String in Ruby
...рия".capitalize #=> мария
The problem is, it just doesn't do what you want it to, it outputs мария instead of Мария.
If you're using Rails there's an easy workaround:
"мария".mb_chars.capitalize.to_s # requires ActiveSupport::Multibyte
Otherwise, you'll have to instal...