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  2. Fold (higher-order function) - Wikipedia

    en.wikipedia.org/wiki/Fold_(higher-order_function)

    Folds can be regarded as consistently replacing the structural components of a data structure with functions and values. Lists, for example, are built up in many functional languages from two primitives: any list is either an empty list, commonly called nil ([]), or is constructed by prefixing an element in front of another list, creating what is called a cons node ( Cons(X1,Cons(X2,Cons ...

  3. Concatenation - Wikipedia

    en.wikipedia.org/wiki/Concatenation

    In many programming languages, string concatenation is a binary infix operator, and in some it is written without an operator. This is implemented in different ways: Overloading the plus sign + Example from C#: "Hello, " + "World" has the value "Hello, World". Dedicated operator, such as . in PHP, & in Visual Basic [1] and || in SQL.

  4. String (computer science) - Wikipedia

    en.wikipedia.org/wiki/String_(computer_science)

    For any two strings s and t in Σ *, their concatenation is defined as the sequence of symbols in s followed by the sequence of characters in t, and is denoted st. For example, if Σ = {a, b, ..., z}, s = bear, and t = hug, then st = bearhug and ts = hugbear. String concatenation is an associative, but non-commutative operation.

  5. Python syntax and semantics - Wikipedia

    en.wikipedia.org/wiki/Python_syntax_and_semantics

    Python sets are very much like mathematical sets, and support operations like set intersection and union. Python also features a frozenset class for immutable sets, see Collection types. Dictionaries (class dict) are mutable mappings tying keys and corresponding values. Python has special syntax to create dictionaries ({key: value})

  6. Why Jennifer Garner Reportedly “No Longer Wishes” to Be in ...

    www.aol.com/lifestyle/why-jennifer-garner...

    Looks like Jennifer Garner and Jennifer Lopez are (allegedly!) no longer on speaking terms amid J.Lo's ongoing divorce from Ben Affleck. According to a source who chatted with the Daily Mail, Jen ...

  7. Linked list - Wikipedia

    en.wikipedia.org/wiki/Linked_list

    A linked list is a sequence of nodes that contain two fields: data (an integer value here as an example) and a link to the next node. The last node is linked to a terminator used to signify the end of the list. In computer science, a linked list is a

  8. Police continue searching for child allegedly given away by ...

    www.aol.com/police-continue-searching-child...

    Police in Oklahoma are searching for a child who vanished three years ago after her mother allegedly gave her to a man selling her drugs, according to reports.

  9. 'Not trivial': EV sales could drop nearly 30% if Trump ... - AOL

    www.aol.com/finance/not-trivial-ev-sales-could...

    That being said, sales for this year are only trending up 10% year over year through Q3, according to Kelley Blue Book, indicating a significant impact, assuming sales trend at the same level in ...

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