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$interval
service in module ng

Description

Angular's wrapper for window.setInterval. The fn function is executed every delay milliseconds.

The return value of registering an interval function is a promise. This promise will be notified upon each tick of the interval, and will be resolved after count iterations, or run indefinitely if count is not defined. The value of the notification will be the number of iterations that have run. To cancel an interval, call $interval.cancel(promise).

In tests you can use $interval.flush(millis) to move forward by millis milliseconds and trigger any functions scheduled to run in that time.

Usage

$interval(fn, delay[, count][, invokeApply]);

Parameters

ParamTypeDetails
fnfunction()

A function that should be called repeatedly.

delaynumber

Number of milliseconds between each function call.

count
(optional)
number

Number of times to repeat. If not set, or 0, will repeat indefinitely.

(default: 0)

invokeApply
(optional)
boolean

If set to false skips model dirty checking, otherwise will invoke fn within the $apply block.

(default: true)

Returns

promise

A promise which will be notified on each iteration.

Methods