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std::vector versus std::array in C++
What are the difference between a std::vector and an std::array in C++? When should one be preferred over another? What are the pros and cons of each? All my textbook does is list how they are the same.
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How to initialize an array in one step using Ruby?
I initialize an array this way:
9 Answers
9
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How can I remove an element from a list, with lodash?
...ect.subTopicId === stToDelete;
});
Alternatively, you can create a new array by filtering the old one with _.filter and assign it to the same object, like this
obj.subTopics = _.filter(obj.subTopics, function(currentObject) {
return currentObject.subTopicId !== stToDelete;
});
Or
obj.sub...
Get JavaScript object from array of objects by value of property [duplicate]
Let's say I have an array of four objects:
17 Answers
17
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Determine whether an array contains a value [duplicate]
I need to determine if a value exists in an array.
18 Answers
18
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Java String split removed empty values
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split(delimiter) by default removes trailing empty strings from result array. To turn this mechanism off we need to use overloaded version of split(delimiter, limit) with limit set to negative value like
String[] split = data.split("\\|", -1);
Little more details:
split(regex) internally return...
How to initialize static variables
...t after definition of the class:
class Foo {
static $bar;
}
Foo::$bar = array(…);
or
class Foo {
private static $bar;
static function init()
{
self::$bar = array(…);
}
}
Foo::init();
PHP 5.6 can handle some expressions now.
/* For Abstract classes */
abstract class Foo{
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Hash and salt passwords in C#
...generation is as the example in the question. You can convert text to byte arrays using Encoding.UTF8.GetBytes(string). If you must convert a hash to its string representation you can use Convert.ToBase64String and Convert.FromBase64String to convert it back.
You should note that you cannot use the...
How to convert 2D float numpy array to 2D int numpy array?
How to convert real numpy array to int numpy array?
Tried using map directly to array but it did not work.
4 Answers
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Referencing a string in a string array resource with xml
...what items will show up on the menu. There are 17 items. I made a string array in values/arrays.xml with titles for each of these 17 items.
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