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What is a difference between
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The reasons for this are based on how Java implements generics.
An Arrays Example
With arrays you can do this (arrays are covariant)
Integer[] myInts = {1,2,3,4};
Number[] myNumber = myInts;
But, what would happen if you try to do this?
myNumber[0] = 3.14; //attempt of heap pollution
This ...
How to get last key in an array?
How can I get the last key of an array?
18 Answers
18
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Algorithm to generate all possible permutations of a list?
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Here is an algorithm in Python that works by in place on an array:
def permute(xs, low=0):
if low + 1 >= len(xs):
yield xs
else:
for p in permute(xs, low + 1):
yield p
for i in range(low + 1, len(xs)):
xs[low]...
Illegal string offset Warning PHP
... this way.... I have tested this code.... It works....
$memcachedConfig = array("host" => "127.0.0.1","port" => "11211");
print_r($memcachedConfig['host']);
share
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improve this answer
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Copy array items into another array
I have a JavaScript array dataArray which I want to push into a new array newArray . Except I don't want newArray[0] to be dataArray . I want to push in all the items into the new array:
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Ruby class types and case statements
...object given in the when clause. In Ruby
case item
when MyClass
...
when Array
...
when String
...
is really
if MyClass === item
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elsif Array === item
...
elsif String === item
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Understand that case is calling a threequal method (MyClass.===(item) for example), and that method can be de...
How do you remove an array element in a foreach loop?
I want to loop through an array with foreach to check if a value exists. If the value does exist, I want to delete the element which contains it.
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How to implode array with key and value without foreach in PHP
Without foreach ,
how can I turn an array like this
11 Answers
11
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JavaScript click event listener on class
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This should work. getElementsByClassName returns an array Array-like object(see edit) of the elements matching the criteria.
var elements = document.getElementsByClassName("classname");
var myFunction = function() {
var attribute = this.getAttribute("data-myattribute");
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What is the purpose of using -pedantic in GCC/G++ compiler?
...tandard. Consider for example the program
struct test {
int zero_size_array[0];
};
The C11 draft n1570 paragraph 6.7.6.2p1 says:
In addition to optional type qualifiers and the keyword static, the [ and ] may delimit an expression or *. If they delimit an expression (which specifies the s...