小编Kit*_*ita的帖子

使用下面的代码,我已经能够保存cookie,但是一旦我关闭应用程序,cookie就会消失.

这是怎么造成的,我该如何解决？

package com.jkjljkj

import android.app.Activity;
import android.os.Bundle;
import android.view.Window;
import android.webkit.CookieSyncManager;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Toast;

public class Activity extends Activity {

    /** Called when the activity is first created. */

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        CookieSyncManager.createInstance(getBaseContext());

        // Let's display the progress in the activity title bar, like the
        // browser app does.


        getWindow().requestFeature(Window.FEATURE_PROGRESS);

        WebView webview = new WebView(this);
        setContentView(webview);


        webview.getSettings().setJavaScriptEnabled(true);

        final Activity activity = this;
        webview.setWebChromeClient(new WebChromeClient() {
        public void onProgressChanged(WebView view, int …

我试图找出一个单行代码使用map.

这是一个简单的设置.

function Cat(name) {
    this.name = name;
    // FYI: using __proto__ is discouraged. thanks @KarelG
    this.__proto__.mew = function () {
        console.log(this.name + " mews");
    };
}

var cats = [
    new Cat('MB'),
    new Cat('503')
];

然后,我可以map()用来调用mew猫的方法.

cats.map(function (cat) {
    cat.mew();
});
// MB mews
// 503 mews

call() 在原型上也有效.

cats.map(function (cat) {
    Cat.prototype.mew.call(cat);
});
// MB mews
// 503 mews

这是我的最后一行,但它发出错误,我无法理解为什么:

cats.map(Cat.prototype.mew.call);

// Uncaught TypeError: undefined is not a function
// at Array.map …

<p id="demo"></p>

<script>

//This is the email list

var emailList =["adam@yahoo.edu\n", "henry@yahoo.edu\n", "john@yahoo.edu\n", "sally@yahoo.edu\n", "adam@yahoo.edu\n", "david@yahoo.edu\n", "myhome@yahoo.edu\n", "david@yahoo.edu\n", "david@yahoo.edu\n", "hunger@yahoo.edu\n", "madison@yahoo.edu\n", ];

//I am removing @yahoo.edu

function removeAddress(list){
    for (var i = 0; i < list.length; i++) {
        list[i] = list[i].replace("@yahoo.edu", " ");
    }
}

//Function to remove the duplicates in the list

function removeDuplicates(list)
{
    var hash = {};
    for (var i = 0; i < list.length; i++)
    {
        var array = list[i];
        for (var j = 0; j …