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Java 8 NullPointerException in Collectors.toMap
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You can work around this known bug in OpenJDK with this:
Map<Integer, Boolean> collect = list.stream()
.collect(HashMap::new, (m,v)->m.put(v.getId(), v.getAnswer()), HashMap::putAll);
It is not that much pretty, but it...
What are the differences between a multidimensional array and an array of arrays in C#?
... int32 'value') cil managed
{
// Code size 7 (0x7)
.maxstack 8
IL_0000: ldarg.0
IL_0001: ldarg.1
IL_0002: ldelem.ref
IL_0003: ldarg.2
IL_0004: ldarg.3
IL_0005: stelem.i4
IL_0006: ret
} // end of method Program::SetElementAt
.method private hidebysig static void...
How do I sort a list of dictionaries by a value of the dictionary?
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It may look cleaner using a key instead a cmp:
newlist = sorted(list_to_be_sorted, key=lambda k: k['name'])
or as J.F.Sebastian and others suggested,
from operator import itemgetter
newlist = sorted(list_to_be_sorted, key=itemgett...
Check free disk space for current partition in bash
...irectory and runs the install script, so the first action should be to check that there is enough space. I know that df will report all file systems, but I was wondering if there was a way to get the free space just for the partition that the target directory is on.
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How to go about formatting 1200 to 1.2k in java
I'd like to format following numbers into the numbers next to them with java:
23 Answers
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Flatten nested dictionaries, compressing keys
Suppose you have a dictionary like:
28 Answers
28
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How to efficiently count the number of keys/properties of an object in JavaScript?
What's the fastest way to count the number of keys/properties of an object? It it possible to do this without iterating over the object? i.e. without doing
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How to avoid “RuntimeError: dictionary changed size during iteration” error?
I have checked all of the other questions with the same error yet found no helpful solution =/
11 Answers
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How to sort objects by multiple keys in Python?
Or, practically, how can I sort a list of dictionaries by multiple keys?
8 Answers
8
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Keep CMD open after BAT file executes
I have a bat file like this:
11 Answers
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