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Find index of a value in an array
Can linq somehow be used to find the index of a value in an array?
8 Answers
8
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Create array of all integers between two numbers, inclusive, in Javascript/jQuery [duplicate]
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In JavaScript ES6:
function range(start, end) {
return Array(end - start + 1).fill().map((_, idx) => start + idx)
}
var result = range(9, 18); // [9, 10, 11, 12, 13, 14, 15, 16, 17, 18]
console.log(result);
For completeness, here it is with an optional step parameter...
PHP Function with Optional Parameters
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Make the function take one parameter: an array. Pass in the actual parameters as values in the array.
Edit: the link in Pekka's comment just about sums it up.
share
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Is it possible to delete an object's property in PHP?
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unset($a->new_property);
This works for array elements, variables, and object attributes.
Example:
$a = new stdClass();
$a->new_property = 'foo';
var_export($a); // -> stdClass::__set_state(array('new_property' => 'foo'))
unset($a->new_property);
v...
what is the best way to convert a json formatted key value pair to ruby hash with symbol as key?
... == Hash
new_hash[k.to_sym] = keys_to_symbol(v)
elsif v.class == Array
new_hash[k.to_sym] = keys_to_symbol_array(v)
else
raise ArgumentError, "Type not supported: #{v.class}"
end
end
return new_hash
end
def keys_to_symbol_array(array)
new_array = []
array.each ...
Nested JSON objects - do I have to use arrays for everything?
Is there any way to have nested objects in JSON so I don't have to make arrays out of everything? For my object to be parsed without error I seem to need a structure like this:
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What's the fastest algorithm for sorting a linked list?
...outine). Thanks to the inherently different behaviour of linked lists from arrays, this Mergesort implementation avoids the O(N) auxiliary storage cost normally associated with the algorithm.
There is also an example implementation in C that work for both singly and doubly linked lists.
As @Jørg...
What are the dangers when creating a thread with a stack size of 50x the default?
...e runtime just makes sure a part of the stack (frame?) is reserved for the array.
I strongly advise being careful with this, though.
I recommend the following:
When you need to create arrays frequently which never leave the function (e.g. by passing its reference), using the stack will be an en...
How to retrieve the first word of the output of a command in bash?
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I think one efficient way is the use of bash arrays:
array=( $string ) # do not use quotes in order to allow word expansion
echo ${array[0]} # You can retrieve any word. Index runs from 0 to length-1
Also, you can directly read arrays in a pipe-line:
echo "word1 w...
php $_POST array empty upon form submission
...share it as it cost me much time.
When using JSON content-type the $_POST array will not populate (only with multi-part forms I believe)
Here is what did work to correct the issue:
$rest_json = file_get_contents("php://input");
$_POST = json_decode($rest_json, true);
hope this helps someone!
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