Cross Domain Requests Not Working With SoundCloud in Safari

I simply cannot get a json response in Safari, calling SoundCloud's API. var inputSet={url:setUrl}, clientId={client_id:client_id}; $.getJSON( "https://api.soundcloud.com/resolve.json", $.extend(inputSet, clientId), function( data ) { console.log(data); }); This returns an Origin Access-Control error in Safari but not in Chrome. CORS is not working at all. Saw CORS not working at all,

跨域请求不能在Safari中使用SoundCloud

我只是无法在Safari中获得json响应,并调用SoundCloud的API。 var inputSet={url:setUrl}, clientId={client_id:client_id}; $.getJSON( "https://api.soundcloud.com/resolve.json", $.extend(inputSet, clientId), function( data ) { console.log(data); }); 这会在Safari中返回一个Origin访问控制错误,但不会在Chrome中返回。 CORS根本不工作。 看到CORS根本不工作,实现了“工作”答案,完全相同的错误,只有Safari

DOM replace entire style attribute (CSSStyleDeclaration) on element

I know that to replace a single style, the code looks something like this: myDOMElement.style.height = '400px'; But what if I want to completely replace the entire style object in one fell swoop, thereby speeding things up and avoiding redraws? For example, I would like to do this: //Get the computed style var computedStyle = window.getComputedStyle(myDOMElement); //Change some stuff in that

DOM替换元素上的整个样式属性(CSSStyleDeclaration)

我知道要替换单个样式,代码看起来像这样: myDOMElement.style.height = '400px'; 但是如果我想一次性完全替换整个样式对象,从而加快速度并避免重绘? 例如,我想这样做: //Get the computed style var computedStyle = window.getComputedStyle(myDOMElement); //Change some stuff in that CSSStyleDeclaration without rendering computedStyle.height = '10px'; computedStyle.width = '20px'; computedStyle.whateve

How to identify a regular expression

This question already has an answer here: Is there a regular expression to detect a valid regular expression? 8 answers Assuming you want to target a source (ex: an article) and want to check which words are used most commonly in that source: Assume the whole block of texts in the articles are in one string, assigned to variable "str": // Will be used to track word counting cons

如何识别正则表达式

这个问题在这里已经有了答案: 是否有正则表达式来检测有效的正则表达式? 8个答案 假设你想定位一个源(例如:一篇文章),并且想要检查哪个单词在该源中最常用: 假设文章中的整个文本块都在一个字符串中,分配给变量“str”: // Will be used to track word counting const arrWords = []; // Target string const str = 'fsdf this is the article fsdf we are targeting'; // We split each word in one array const

How can I invert a regular expression in JavaScript?

I have a string A and want to test if another string B is not part of it. This is a very simple regex whose result can be inverted afterwards. I could do: /foobar/.test('foobar@bar.de') and invert it afterwards, like this: !(/foobar/).test('foobar@bar.de') The problem I have is, that I need to do it within the regular expression and not with their result. Something like: /!foobar/.test(

如何在JavaScript中反转正则表达式?

我有一个字符串A,并想测试另一个字符串B是否不属于它。 这是一个非常简单的正则表达式,其结果可以在之后反转。 我可以: /foobar/.test('foobar@bar.de') 然后倒转,如下所示: !(/foobar/).test('foobar@bar.de') 我的问题是,我需要在正则表达式中完成,而不是结果。 就像是: /!foobar/.test('foobar@bar.de') (这不起作用) 换句话说:正则表达式应该测试一个不存在的情况,并在这种情况下返回true。 这是

How match a regex if it does not contain a particular word?

I want to write a regex in Python or JavaScript to match if the given string does not JUST contain the given word (eg "any"). For example : any : does not match AnY : does not match anyday : match any day : match blabla : match If you also need words other that starting with "any" you can use a negative lookahead ^(?!any$).*$ This will match anything besides &q

如果匹配正则表达式,如果它不包含特定的单词?

如果给定的字符串不包含给定的单词(例如“any”),我想在Python或JavaScript中编写正则表达式来匹配。 例如 : any :不匹配 AnY :不匹配 anyday :比赛 any day :比赛 blabla :比赛 如果您还需要其他以“any”开头的单词,则可以使用负面预测 ^(?!any$).*$ 这将匹配除“any”以外的任何内容。 不使用正则表达式可能更有效,这也适用: def noAny(i): i = i.lower().replace('any', '') return len(i) &g

Where Does Meteor Store It's Data?

I have just started playing around with Meteor and MongoDB for the first time. I come from a .net developer background and MSSQL. I have created a simple web following this tutorial. Also, I have added the accounts-password package to my app as well. Everything works like a charm, I can add data to my application in real time and I can create users and login, etc, etc. However, when I open up

流星在哪里存储数据?

我刚开始第一次和Meteor和MongoDB一起玩。 我来自.net开发人员背景和MSSQL。 我在本教程之后创建了一个简单的Web。 另外,我还将帐户密码包添加到我的应用中。 一切工作都像一个魅力,我可以实时添加数据到我的应用程序,我可以创建用户和登录等等。但是,当我打开Robomongo并查找存储的数据时,我没有在我的内部找到任何信息'carbrands'collection在carbrands.js中声明为 CarBrands= new Meteor.Collection("carbra

How to set the focus of the inputText inside dataTable

Good Afternoon, Using JSF + Primefaces. I have a dataTable with inputText field, which performs a listner, and when you end the function or pressing tab, the focus would be to input the low line of the same component. Googled some things, and it seems that's to be done with JavaScript or jQuery, but I have not much knowledge. It seems that the clientId of the component has something fo

如何设置dataTable中inputText的焦点

下午好, 使用JSF + Primefaces。 我有一个inputText字段的数据表,它执行一个列表器,当你结束函数或按Tab键时,焦点将是输入同一个组件的低行。 Google搜索了一些东西,似乎是用JavaScript或jQuery完成的,但我没有太多知识。 看起来组件的clientId有一些形式:dataTable:0:输入,数字“0”来操纵焦点。 任何人都知道如何在dataTable中处理组件的焦点? 谢谢。 为您的组件添加适当和动态的ID,然后您可以轻松识别

How to check if element is last child without JQuery

I have a pure Javascript script with an onclick event that checks the value of the next sibling before deciding what to do. This will cause an error if the element clicked is the last element in its container (because of accessing nextSibling). I need to first check that the element clicked is not the last element in the container, but can't seem to find out how. Note: I don't think t

如何检查元素是否是没有JQuery的最后一个孩子

我有一个纯JavaScript脚本,它带有一个onclick事件,它在决定做什么之前检查下一个兄弟的值。 如果单击的元素是其容器中的最后一个元素(因为访问nextSibling),将导致错误。 我需要首先检查点击的元素是不是容器中的最后一个元素,但似乎无法找到如何。 注意:我不认为这是重复的。 关于检查一个元素是否是最后一个孩子的问题有很多,但是所有的答案都是一般性使用JQuery的答案。 您可以在元素上使用.nextSibling属性,并

difference between null and undefined in JavaScript?

According to What is the difference between null and undefined in JavaScript?, null and undefined are two different objects (having different types) in Javascript. But when I try this code var a=null; var b; alert(a==null); // expecting true alert(a==undefined); // expecting false alert(b==null); // expecting false alert(b==undefined); // expecting true The output of the above code i

JavaScript和null之间的区别?

根据JavaScript中null和undefined的区别是什么?, null和undefined是Javascript中两个不同的对象(具有不同的类型)。 但是当我尝试这个代码 var a=null; var b; alert(a==null); // expecting true alert(a==undefined); // expecting false alert(b==null); // expecting false alert(b==undefined); // expecting true 上面的代码的输出是: true true true true 现在as ==只匹配值,我认为undefined和null

Can I set variables to undefined or pass undefined as an argument?

I'm a bit confused about JavaScript's undefined and null values. What does if (!testvar) actually do? Does it test for undefined and null or just undefined ? Once a variable is defined can I clear it back to undefined (therefore deleting the variable)? Can I pass undefined as a parameter? Eg: function test(var1, var2, var3) { } test("value1", undefined, "value2"); I'm a bi

我可以将变量设置为undefined或传递undefined作为参数吗?

我对JavaScript的undefined值和null值有点困惑。 if (!testvar)实际上做了什么? 它测试undefined和null或只是undefined ? 一旦定义了一个变量,我可以将其清除回undefined (因此删除该变量)? 我可以传递undefined作为参数吗? 例如: function test(var1, var2, var3) { } test("value1", undefined, "value2"); 我对Javascript undefined&null有点困惑。 不要对null感到困惑。 它通常是有意义的,其行为与