Detailed explanation of the usage of $interval in AngularJS_AngularJS

In AngularJS $interval is used to handle intermittent processing of some things.

The most commonly used ones are:

var app = angular.module("app",[]);
app.controller("AppCtrl", function($q. $interval){
var timer = $interval(function(){
},100);
timer.then(success);
function success(){
console.log("done");
}
}) 

The above does one thing every 100 milliseconds, all of which were calling the then function last night. That is, $interval provides a callback function.

Can I control the number of times I do something?

--可以的。
var timer = $interval(function(){},100,10);

Above, the last actual parameter 10 is the limit number of times.

In addition to calling the callback function after everything is finished, what other callback functions are there?

--Yes, it also includes callback functions every time an event is called, and callback functions when an error occurs.

var timer = $interval(function(){},100, 10);
timer.then(success, error, notify);
function success(){
console.log("done");
}
function error(){
console.log("error");
}
function notify(){
console.log("每次都更新");
}

Is it possible to cancel the $interval service?

--通过$interval.cancle(timer);
var timer = $interval(function(){},100, 10);
this.cancel = function(){
$interval.cancel(timer);
}

The above is a detailed explanation of the usage of $interval in AngularJS. I hope it will be helpful to everyone.