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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 saw this in a plugin: var options = $.extend(defaults, options); How does it work? What does extend() do? 回答1: Multiple Parameters The documentation isn't precise in explaining how extend works, so I ran a little test: var a = {foo: 1, bar: 1}; var b = {foo: 2, baz: 2}; var c = {foo: 3}; var r = jQuery.extend(a,b,c); console.log("A: Foo=" + a.foo + " Bar=" + a.bar + " Baz=" + a.baz); console.log("B: Foo=" + b.foo + " Bar=" + b.bar + " Baz=" + b.baz); console.log("C: Foo=" + c.foo + " Bar=" + c.bar + " Baz=" + c.baz); console.log("R: Foo="

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: Firstly, my status bar background is set to dark brown, and my navigation bar background is default black. I'm using the Material light theme. I'm starting a new activity using ActivityOptions.makeSceneTransitionAnimation with default transitions, and I notice that both the status and navigation bars briefly fade to white and then back to the correct colors. According to the documentation : To get the full effect of a transition, you must enable window content transitions on both the calling and called activities. Otherwise, the calling

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 using following code to produce a bar chart of HairEyeColor dataset: mm = melt(HairEyeColor) mm$hair_eye = paste(mm$Hair, mm$Eye, sep='_') ggplot(mm)+geom_bar(aes(x=hair_eye, y=value, fill=hair_eye), stat='identity')+facet_grid(Sex~.) I get following barchart: I want to color each bar in 2 colors: upper half to show hair color and lower half to show eye color, as shown in a manually created bar for black hair & brown eye color below: Also, the legend needs to be removed. How can I achieve this? HairEyeColor dataset: > HairEyeColor , ,

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 create a Stacked Bar Graph using ggplot2. Here is how my data looks like Date Full.Page.Ads Total.Pages 11/10/2015 3 24 12/10/2015 10 24 13/10/2015 15 24 This is the code which I am trying to use to visualize the data library("ggplot2") library("reshape2") ns <- read.csv("NS.csv") ggplot(data=ns, aes(x = Date, y = Total.Pages, fill=Full.Page.Ads)) + geom_bar(stat = "identity") But for some reason rather than making a proper stacked bar chart, it keeps making something like this http://imgur.com/rqxEzjF.jpg . Rather than this I

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: Consider the following piece of code: class foo { private function m() { echo 'foo->m() '; } public function call() { $this->m(); } } class bar extends foo { private function m() { echo 'bar->m() '; } public function callbar() { $this->m(); } } $bar = new bar; $bar->call(); $bar->callbar(); Now, changing the visibility of the m() method, I get: ( + for public , - for private ) Visibility bar->call() bar->callbar() ====================================================== -foo->m(), -bar->m() foo->m() bar->m() -foo->m(), +bar->m() foo->m() bar-

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 want to have no status bar for the Cordova app I am developing. I am nearly there, the status bar doesn't show on the splash screen. However on the first page that loads you see a flash of the status bar, before it gets hidden. I have checked the "hide status bar" checkbox in Xcode. I have added the cordova-plugin-statusbar plugin, and on the deviceready callback, I'm calling StatusBar.hide() . However when the splash image disappears and the first page is being rendered there is a flash of status bar prior to the page being display. It 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: I've made this bar chart http://imageshack.com/a/img901/7186/cnOfhh.png , and the code for it is: //compute & mark average color for (var i = 0; i = zdata[i].TimePlayed) { zdata[i]['Color'] = 'green'; } else { zdata[i]['Color'] = 'red'; } } //localsitelist var element = { rt: 'D', Id: rid, courselist: clist, selcourseId: selCid, selcourse: selCname, cartlist: wData, selSiteId: lsid, selsite: sitename, dataList: zdata }; //, carts: _mVM.availableCarts()}; // //if rid exists, is update, else its new var found = -1; for (var k = 0; k and 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): 由 翻译 强力驱动 问题: I need to make a circular progress bar (image below), loading start from left bottom side up to right bottom side. Light-blue (#E8F6FD) color is empty state and strong-blue (#1CADEB) is progress. I have tried some approaches, but cannot find the best one for this implementation: First of all I tried using a div element with border-radius: 50%; and border-bottom-color: transparent; , jsfiddle . In this approach I got a shape exactly like in image but the problem is how can I fill border with progress? The second try was using canvas

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 want to create a windows 7 loading bar on the taskbar. something like this: I already have a jframe frame where a game loads in it. I want to make the loadingbar show the progress of downloading the cache of the game. The jframe and the downloading are handled in two seperate classes. When I looked on the web, I found 2 solutions. SWT: where you can create the loadingbar, but I think you can't combine that with a jframe. bridj: which is possible to add to jframe, but I don't have any idea how to do this with an existing jframe

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 struggling to figure out the queryset for SlugRelatedField. My data is such that I have a bunch of Object instances that belong to a Project . A project has a unique 'top' Object . Object s can have the same name only if they below to different Project s. class Object(models.Model): project = models.ForeignKey('Project', null=False, related_name='objs') name = models.TextField(null=False, db_index=True) .... class Meta: index_together = unique_together = ('project', 'name') class Project(models.Model): user = models.ForeignKey(get_user