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可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have apple and pears - both have an isDecayed attribute: interface Apple { color: string; isDecayed: boolean; } interface Pear { weight: number; isDecayed: boolean; } And both types can be in my fruit basket (multiple times): interface FruitBasket { apples: Apple[]; pears: Pear[]; } Let's assume for now my basket is empty: const fruitBasket: FruitBasket = { apples: [], pears: [] }; Now we take randomly one kind out of the basket: const key: keyof FruitBasket = Math.random() > 0.5 ? 'apples': 'pears'; const fruits = fruitBasket[key]; And of

option 第一项 display：none 特殊，有个项目是通过PHP程序控制输出的 select 标签 和 对应的选中属性项，我通过F12也看到对应的 option 标签的确也加上了 selected ="selected" 这一选中属性，但是界面依旧没改变,还是选中的初始那个默认的"--请选择--"。 这不是我们想要的结果，搜了很久，找到解决办法，在select 标签中添加属性 autocomplete="off" 即可解决问题，欢迎大神们道出其中的缘由以及更好的解决之道。 prop（） 来源： https://www.cnblogs.com/wsj1/p/11771293.html

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am trying to implement Apple Push Notification using python and django. i am using following library to implement it http://leepa.github.com/django-iphone-push/ Here is my code that create that send the message from django.http import HttpResponse from django.utils import simplejson import json from push.models import iPhone def SendMessage(request,data): t = iPhone('XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX ') # 64 digit token t.send_message("hi") # at this line i am getting ERROR return HttpResponse(data,mimetype='application

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I am fairly new to OSX development, so this may be easy but google has not been helpful. I am trying to bind an action to the media keys you find on newer Apple keyboards (Play, Pause , etc). It appears that you cannot bind to these keys using the regular hotkey API but it must be possible since iTunes clearly manages. Is there some tricky undocumented API that achieves this? Any help would be much appreciated. 回答1: After more extensive googling, this http://www.rogueamoeba.com/utm/2007/09/29/ seems to address the issue. There is

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Hi I would like to record a video in iPhone through Objective-C. Can someone provide me the sample code to write my own code. I have no idea how to do it. And i need it in hurry. Any little help will be appreciated greatly. Thanks in advance. Regards Sohaib Qazi 回答1: AV Foundation Framework is the new way to record video and audio on iOS and Mac. http://developer.apple.com/library/ios/#documentation/AudioVideo/Conceptual/AVFoundationPG/Articles/00_Introduction.html#//apple_ref/doc/uid/TP40010188 It gives you much more control over focus,

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Has anyone been able to load an app preview video in iTunes connect? I receive an error every time, saying "Your file could not be loaded. Please try again." Any workaround to this, that you're aware of? 回答1: I'm here to save the day. The root of the issue is that itunesconnect does not like the format of the file saved by quicktime, or pretty much any format for that matter. I was able to find just 1 file format that worked. You will need a free program called HandBrake Use this program to convert the file you are trying to upload with the

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: How can I make this code work? #!/bin/bash ARRAYNAME='FRUITS' FRUITS=( APPLE BANANA ORANGE ) for FRUIT in ${!ARRAYNAME[@]} do echo ${FRUIT} done This code: echo ${!ARRAYNAME[0]} Prints APPLE . I'm tryng to do something similar but with "[@]" to iterate over the array. Thanks in advance, 回答1: ${!ARRAYNAME[@]} means "the indices of ARRAYNAME ". As stated in the bash man page since ARRAYNAME is set, but as a string, not an array, it returns 0 . Here's a solution using eval . #!/usr/bin/env bash ARRAYNAME='FRUITS' FRUITS=( APPLE BANANA ORANGE )

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am going to upload my first mac app to Apple Store And fixed all validation bugs of icon,category... But after then I passed validation with warning : The resulting API analysis file is too large. We were unable to validate your API usage prior to delivery. This is just an informational message. And my upload be rejected with the reason : "Invalid binary" Is there anyone has experience of this case ? UPDATE : this warning is not the reason of rejecting, it maybe the app archiving problem. I successfully released my app to store. So, we can

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have a quite simple JavaScript object, which I use as an associative array. Is there a simple function allowing me to get the key for a value, or do I have to iterate the object and find it out manually? 回答1: with Underscore.js var hash = { foo: 1, bar: 2 }; (_.invert(hash))[1]; // => 'foo' 回答2: No standard method available. You need to iterate and you can create a simple helper: Object.prototype.getKeyByValue = function( value ) { for( var prop in this ) { if( this.hasOwnProperty( prop ) ) { if( this[ prop ] === value ) return prop; } } }

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: We are totally stucked, please help. I and my team made a iPhone application, and this is the first time we try on iOS. Everything is fine, until we submitted our app and became available on app-store -- the push notification service is not working. I searched around the web and tried double check on our app by people's advices, but I couldn't find what's wrong. so this question is posted here. These are what we did: We build the application, suppose it's named "AppMaster". We created AppId on iOS Provisioning Portal called: