In programming language theory, lazy evaluation, or call-by-need, is an evaluation strategy which delays the evaluation of an expression until its value...

and some authors define lazy evaluation as normal order evaluation or vice-versa, or confuse non-strictness with lazy evaluation.: 43–44  Boolean expressions...

before invoking the function. Lazy evaluation does not evaluate function arguments unless their values are required to evaluate the function call itself....

Short-circuit evaluation, minimal evaluation, or McCarthy evaluation (after John McCarthy) is the semantics of some Boolean operators in some programming...

expensive process until the first time it is needed. It is a kind of lazy evaluation that refers specifically to the instantiation of objects or other resources...

Lazy evaluation Lazy initialization "What is Lazy Loading | Lazy vs. Eager Loading | Imperva". Learning Center. Retrieved 2022-02-02. "What Is Lazy Loading...

statically-typed, purely functional programming language with type inference and lazy evaluation. Designed for teaching, research, and industrial applications, Haskell...

functional in the sense that it did not use lazy evaluation. Okasaki simplified the data structure by using lazy evaluation with a bootstrapped data structure...

non-strict evaluation, an evaluation strategy where the arguments to a function are not immediately evaluated. This form of non-strict evaluation is also...

"Similar Functional Languages". Retrieved 26 November 2013. "(Scheme) 17. Lazy Evaluation". Retrieved 30 April 2020. "Records - Revised6 Report on the Algorithmic...

Scheme, Standard ML, and Haskell), including currying, immutability, lazy evaluation, and pattern matching. It also has an advanced type system supporting...

programs are evaluated, since eager evaluation will return the same result as lazy evaluation. However, it is still possible that an eager evaluation may not...

in call by need. Lazy futures are of use in languages which evaluation strategy is by default not lazy. For example, in C++11 such lazy futures can be created...

to allow a lazy evaluation strategy in programs, unlike the traditional eager evaluation strategy of Standard ML. While Haskell uses the lazy model by default...

allows the user to define non-strict functions, and hence may allow lazy evaluation. In most non-strict languages, the non-strictness extends to data constructors...

are normally eager evaluation, but a lazy evaluation option exists, indicated by the use of the d operator. Usually, to evaluate an expression of the...

programming languages, ML uses eager evaluation, meaning that all subexpressions are always evaluated, though lazy evaluation can be achieved through the use...

summarized below. Lazy evaluation is particularly interesting in a purely functional language: 31  because the order of the evaluation never changes the...

programming paradigms, including logic, functional (both lazy evaluation and eager evaluation), imperative, object-oriented, constraint, distributed, and...

research produced a series of lazy evaluation programming languages in which some variant of call-by-name is the standard evaluation strategy. Compilers for...

(1993). Partial Evaluation and Automatic Program Generation. Prentice Hall. ISBN 9780130202499. Danvy, O., ed. (1999). "Partial Evaluation and Semantics-Based...

The term Lazy specification is coined by analogy with lazy evaluation in functional programming. The latter describes the delayed evaluation of sub-expressions...

programming concepts. It was first used for early experimentation with lazy evaluation. An SECD machine-based implementation written in an ALGOL variant was...

F# is an expression-based language using eager evaluation and also in some instances lazy evaluation. Every statement in F#, including if expressions...

defined as having a strict evaluation strategy, although there are non-conforming back-ends which implement a lazy evaluation strategy. PureScript was initially...

purely-functional programming language with dependent types, optional lazy evaluation, and features such as a totality checker. Idris may be used as a proof...

languages, including the first for functional programming based on lazy evaluation, combinator graph reduction, and polymorphic types: SASL (1972), Kent...

use a lazy evaluation, that is, if the value of the expression can be determined from the left hand Boolean expression then they do not evaluate the right...

Comparative Notes on Algol 68 and PL/I – S. H. Valentine – November 1974 1976 – Evaluation of ALGOL 68, JOVIAL J3B, Pascal, Simula 67, and TACPOL Versus TINMAN –...

optimizing code by means of memoization, common subexpression elimination, lazy evaluation, or parallelization. The concept originated in Alfred North Whitehead...