静态javascript变量用作Angularjs控制器中的计数器 [英] Static javascript variable to be used as counter in Angularjs controller

问题描述

我想创建一个静态javascript变量用作Angularjs控制器内的计数器.此静态变量将在重复调用的轮询函数中使用.

I would like to create a static javascript variable to be used as a counter inside a Angularjs controller. This static variable will be used inside a polling function that gets repeatedly called.

我想以这种方式使用静态变量；

I want to use the static variable in a manner that looks like this;

var polling_func = function()
{
    static var counter = 0;

    if (counter == 10)
    {
        alert('Do action');
        counter = 0;
    }
    counter = counter + 1;
    $timeout(polling_func, 1000);
}
polling_func();

不幸的是，我无法在javascript中使用static关键字声明静态变量.我应该如何在我的代码中这样做?

Unfortunately, I cannot declare a static variable using static keyword in javascript. How should I go about doing so in my code?

推荐答案

为什么不声明全局变量，因此无论何时调用函数，它都不会更改值.

Why not declare a global variable, so it will not change the value whenever function is called.

 var counter = 0;
var polling_func = function()
{


    if (counter == 10)
    {
        alert('Do action');
        counter = 0;
    }
    counter = counter + 1;
}
polling_func();
$timeout(polling_func, 1000);

这篇关于静态javascript变量用作Angularjs控制器中的计数器的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！