object | 易学教程

Merging objects within an array and keeping the highest value for identical properties

阅读更多关于 Merging objects within an array and keeping the highest value for identical properties

问题 I have this array and I would like to merge the objects within it. [null, null, {"1":1},{"2":1},{"3":1},{"2":2},{"5":1}] I thought about using something like this: var o1 = { a: 1, b: 1, c: 1 }; var o2 = { b: 2, c: 2 }; var o3 = { c: 3 }; var obj = Object.assign({}, o1, o2, o3); console.log(obj); // { a: 1, b: 2, c: 3 } However, the properties are overwritten by other objects that have the same properties later in the parameters order What I want is to keep the highest value available for the

stdClass Object has strange quirk on live site but not local machine [closed]

阅读更多关于 stdClass Object has strange quirk on live site but not local machine [closed]

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed last year . I created a set of helper functions to make my life easier when doing database operations in php. Essentially I pass the functions an stdClass Object that they then use to either perform an operation (delete, add, etc) or retrieve information. They seem to work as intended except for the helper function that is

Python file object allows you to close a file that is already closed

阅读更多关于 Python file object allows you to close a file that is already closed

问题 Creating code in 2.7 (for a Python class I am taking) and cross-testing it in 3.x (for me). This code is not required. I decided to build objects that might be useful for the future instead of simply answering the original question directly. Since 3.x has no file object to inherit, my object uses file instances within it instead of inheriting from it directly. During testing of the code which follows, I encountered an oddity. I can close a file and then close it again and this does not

Object of class stdClass could not be converted to string PHP issue

阅读更多关于 Object of class stdClass could not be converted to string PHP issue

问题 Im pulling info from Jira Atlassian API, ive worked with other code and it works fine and i change it to json and all the info gets returned as an object. However in this case i get this server error: PHP Catchable fatal error: Object of class stdClass could not be converted to string in /usr/local/vhosts/999/webspace/httpdocs/mysite/filters1.php on line 411 Now here is the code im trying to run: $username = 'xxx@gmail.com'; $password = 'xxxxxxx'; $url = 'xxx.atlassian.net/rest/api/2/search

Replace Java object instance with another and all references

阅读更多关于 Replace Java object instance with another and all references

问题 is there a way to replace an object in java with another one that updates all references to the first one to instead point to the second one? In C# this question was answered here: Replace object instance with another in C# but I was wondering if I could do this in Java. Thanks! EDIT: 1. I want to replace the first object with a an object of a subtype. 2. I can't edit the implementation of the first object, that's why I'm replacing it with a subtype. I can edit the subtype. 回答1: Don't don't

how to create multidimensional array / object in jquery and pass via AJAX post

阅读更多关于 how to create multidimensional array / object in jquery and pass via AJAX post

问题 I am creating an order form that has a table of order items users can purchase. The inputs are using data attributes to store the items name and price per piece like so: <input type="text" class="input-small quantity-input" data-pid="<?php echo $p['id']; ?>" data-min="<?php echo $p['min_qty']; ?>" data-max="<?php echo $p['max_qty']; ?>" data-price="<?php echo $p['price']; ?>" data-name="<?php echo $p['product_name']; ?>" placeholder="quantity..."> I have everything figured out except for how

Dynamic Object Creation

阅读更多关于 Dynamic Object Creation

问题 I have a function that takes a string object name and I need the function to create an new instance of a object that has the same name as the value of the string For example, function Foo(){} function create(name){ return new name(); } create('Foo'); //should be equivalent to new Foo(); While I know this would be possible via eval, it would be good to try and avoid using it. I am also interested if anyone has an alternative ideas to the problem (below) I have a database and a set of (using

Why does this AngularJs Service with variable object name return an undefined object?

阅读更多关于 Why does this AngularJs Service with variable object name return an undefined object?

问题 Scenario : I'd like to use this service to share some properties inside my webApp. This service should have some object inside and the controllers should be able to get and set those objects. JS : var oneApp = angular.module('myApp', ['ui.bootstrap', 'ngTouch', 'ngAnimate']) .service('sharedProps', function() { var anObjNameDest = ''; var anObjPropName = ''; this.progressBarDynTyped00 = { dynamic: 0, dynMultiplier: 10, max: 100 }; var progressBarDynTyped00 = { dynamic: 1000, dynMultiplier:

Java多线程8：wait()和notify()/notifyAll()

阅读更多关于 Java多线程8：wait()和notify()/notifyAll()

轮询线程本身是操作系统中独立的个体，但是线程与线程之间不是独立的个体，因为它们彼此之间要相互通信和协作。想像一个场景，A线程做int型变量i的累加操作，B线程等待i到了10000就打印出i，怎么处理？一个办法就是，B线程while(i == 10000)，这样两个线程之间就有了通信，B线程不断通过轮训来检测i == 10000这个条件。这样可以实现我们的需求，但是也带来了问题：CPU把资源浪费了B线程的轮询操作上，因为while操作并不释放CPU资源，导致了CPU会一直在这个线程中做判断操作。如果可以把这些轮询的时间释放出来，给别的线程用，就好了。 wait/notify 在Object对象中有三个方法wait()、notify()、notifyAll()，既然是Object中的方法，那每个对象自然都是有的。如果不接触多线程的话，这两个方法是不太常见的。下面看一下前两个方法： 1、wait() wait()的作用是使当前执行代码的线程进行等待，将当前线程置入"预执行队列"中，并且wait()所在的代码处停止执行，直到接到通知或被中断。在调用wait()之前，线程必须获得该对象的锁，因此只能在同步方法/同步代码块中调用wait()方法。 2、notify() notify()的作用是，如果有多个线程等待，那么线程规划器随机挑选出一个 wait的线程，对其发出通知notify

Java多线程8：wait()和notify()/notifyAll()

阅读更多关于 Java多线程8：wait()和notify()/notifyAll()

订阅 object