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Getting a slice of keys from a map
...ests (using a map with 1,000,000 random int64 keys and then generating the array of keys ten times with each method), it was about 20% faster to assign members of the array directly than to use append.
Although setting the capacity eliminates reallocations, append still has to do extra work to chec...
Reset PHP Array Index
I have a PHP array that looks like this:
3 Answers
3
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PHP reindex array? [duplicate]
I have array that i had to unset some indexes so now it looks like
4 Answers
4
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Reading a string with scanf
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An array "decays" into a pointer to its first element, so scanf("%s", string) is equivalent to scanf("%s", &string[0]). On the other hand, scanf("%s", &string) passes a pointer-to-char[256], but it points to the same pla...
Mongoose (mongodb) batch insert?
... seconds.
Model.collection.insert(docs, options, callback)
docs is the array of documents to be inserted;
options is an optional configuration object - see the docs
callback(err, docs) will be called after all documents get saved or an error occurs. On success, docs is the array of persisted doc...
Storing R.drawable IDs in XML array
...ke to store drawable resources' ID in the form of R.drawable.* inside an array using an XML values file, and then retrieve the array in my activity.
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How can I shuffle an array? [duplicate]
I want to shuffle an array of elements in JavaScript like these:
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how to stop Javascript forEach? [duplicate]
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Breaking out of Array#forEach is not possible. (You can inspect the source code that implements it in Firefox on the linked page, to confirm this.)
Instead you should use a normal for loop:
function recurs(comment) {
for (var i = 0; i ...
Javascript - sort array based on another array
Is it possible to sort and rearrange an array that looks like this:
21 Answers
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How to calculate a logistic sigmoid function in Python?
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Using math.exp with numpy array can yield some errors, like: TypeError: only length-1 arrays can be converted to Python scalars. To avoid it you should use numpy.exp.
– ViniciusArruda
Nov 23 '17 at 13:41
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