Что (кто) такое callback - определение

WIKIMEDIA DISAMBIGUATION PAGE

Call-back; Callback (disambiguation); Call back

callback

1. <programming> A scheme used in event-driven programs where the program registers a subroutine (a "callback handler") to handle a certain event. The program does not call the handler directly but when the event occurs, the run-time system calls the handler, usually passing it arguments to describe the event. 2. <communications, security> A user authentication scheme used by some computers running dial-up services. The user dials in to the computer and gives his user name and password. The computer then hangs up the connection and uses an auto-dial modem to call back to the user's registered telephone number. Thus, if an unauthorised person discovers a user's password, the callback will go, not to him, but to the owner of that login who will then know that his account is under attack. However, some PABXs can be fooled into thinking that the caller has hung up by sending them a dial tone. When the computer tries to call out on the same line it is not actually dialing through to the authorised user but is still connected to the original caller. 3. <communications> cost control callback. (2003-07-13)

callback

¦ noun chiefly N. Amer. an invitation to return for a second audition or interview.

Callback (computer programming)

ANY EXECUTABLE CODE THAT IS PASSED AS AN ARGUMENT TO OTHER CODE THAT IS EXPECTED TO CALL BACK THE ARGUMENT AT A GIVEN TIME

Callbacks; Callback routine; Callback function; Callback (computer science); Blocking callback; Deferred callback; Synchronous callback; Asynchronous callback

In computer programming, a callback or callback function is any reference to executable code that is passed as an argument to another piece of code; that code is expected to call back (execute) the callback function as part of its job. This execution may be immediate as in a synchronous callback, or it might happen at a later point in time as in an asynchronous callback.

https://en.wikipedia.org/wiki/Callback_(computer_programming)

Википедия

Callback

Callback may refer to:

Callback (comedy), a joke which refers to one previously told
Callback (computer programming), executable code that is passed as a parameter to other code
Callback (telecommunications), the telecommunications event that occurs when the originator of a call is immediately called back in a second call as a response
Callback verification, a method for e-mail address verification used in SMTP
Web callback, a technology that provides telephone callback for websites
"The Callback", an episode of the TV series Smash
Callback, in the performing arts, a stage of the audition process

https://en.wikipedia.org/wiki/Callback

Примеры произношения для callback

1. That's the first callback,

ted-talks_510_EmilyLevine_2002-320k

2. to your callback tomorrow?

Sis and Karen Olivo _ The Next Generation Project _ Talks at Google

3. Good-- good callback, though.

Herding Hemingway's Cats _ Kat Arney _ Talks at Google

4. You got your callback.

Broadway's Ain't Too Proud _ Talks at Google

5. for my final callback.

Примеры употребления для callback

1. Until the callback, Georgia had the third–largest contingent of troops serving in Iraq, 2,000, after the United States and Britain.

2. Advertisement However, part of the charge makes its way to the Israeli cellular operator, who provides call completion or callback services.

3. For every 10 white men without convictions who got a job offer or callback, more than 7 white men with prison records also did, the study found.

4. They intend to continue to offer customers services that reduce the price of overseas roaming by up to 70 percent, such as CallBack service, which converts a call from overseas to a far less expensive call from Israel.

5. "It takes a black ex–offender three times as long to receive a callback or a job offer," said Devah Pager, an assistant professor of sociology and one of the study‘s two authors.