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thunk    音标拼音: [θ'ʌnk]
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thunk
n 1: a dull hollow sound; "the basketball made a thunk as it hit
the rim"

/thuhnk/ 1. "A piece of coding which provides an
address", according to P. Z. Ingerman, who invented thunks in
1961 as a way of binding {actual parameters} to their formal
definitions in {ALGOL 60} {procedure} calls. If a procedure
is called with an expression in the place of a {formal
parameter}, the compiler generates a thunk which computes the
expression and leaves the address of the result in some
standard location.

2. The term was later generalised to mean an expression,
frozen together with its {environment} (variable values), for
later evaluation if and when needed (similar to a
"{closure}"). The process of unfreezing these thunks is
called "forcing".

3. A {stubroutine}, in an {overlay} programming environment,
that loads and jumps to the correct overlay.

Compare {trampoline}.

There are a couple of onomatopoeic myths circulating about the
origin of this term. The most common is that it is the sound
made by data hitting the {stack}; another holds that the sound
is that of the data hitting an {accumulator}. Yet another
suggests that it is the sound of the expression being unfrozen
at argument-evaluation time. In fact, according to the
inventors, it was coined after they realised (in the wee hours
after hours of discussion) that the type of an argument in
{ALGOL 60} could be figured out in advance with a little
{compile-time} thought, simplifying the evaluation machinery.
In other words, it had "already been thought of"; thus it was
christened a "thunk", which is "the past tense of "think" at
two in the morning".

4. ({Microsoft Windows} programming) {universal thunk},
{generic thunk}, {flat thunk}.

[{Jargon File}]

(1997-10-11)


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  • verbs - Proper usage of the word thunk - English Language Usage . . .
    I have often used the phrase 'Some people think, and some people thunk ' where thunk is a verb with synonyms such as flunk (which, co-incidentally, rhymes with thunk), fail etc This usage also makes a witty double pun with thunk ( flunk,fail ) in reference to thunk ( a flat hollow sound ) Thunking could therefore be defined as not thinking
  • How to use Redux-Thunk with Redux Toolkits createSlice?
    You'd still use an async middleware (typically redux-thunk), fetch data, and dispatch actions with the results As of Redux Toolkit 1 3, we do have a helper method called createAsyncThunk that generates the action creators and does request lifecycle action dispatching for you, but it's still the same standard process
  • What is the difference between redux-thunk and redux-promise?
    the Thunk would compose the original action(s) and dispatch them redux-promise would then handle unwrapping at the reducer(s) the individual promise(s) generated by your Thunk, to avoid the boilerplate that entails
  • How can I test Thunk actions with Jest? - Stack Overflow
    import configureMockStore from 'redux-mock-store' import thunk from 'redux-thunk' const middlewares





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