I'm making a small Meteor package. It employs two other packages that are explicitly listed in its package.js . For test purposes, I add this package from local system (it's not published on Atmosphere). And I keep getting error messages after I run the app: => Started proxy. => Started MongoDB. => Errors prevented start
我正在制作一个小流星包。 它使用了两个明确列在package.js中的package.js 。 出于测试目的，我从本地系统添加此软件包（它未在Atmosphere上发布）。 我在运行应用程序后不断收到错误消息： => Started proxy. => Started MongoDB. => Errors prevented startup: While selecting package versions: error: unknown package in t
Is there a way I can do a sleep in JavaScript before it carries out another action? Example: var a = 1+3; // Sleep 3 seconds before the next action here var b = a + 4; You can use setTimeout to achieve a similar effect: var a = 1 + 3; var b; setTimeout(function() { b = a + 4; }, (3 * 1000)); This doesn't really 'sleep' JavaScript—it just executes the function passed to se
有没有一种方法可以在JavaScript执行另一个操作之前进行睡眠？ 例： var a = 1+3; // Sleep 3 seconds before the next action here var b = a + 4; 你可以使用setTimeout来达到类似的效果： var a = 1 + 3; var b; setTimeout(function() { b = a + 4; }, (3 * 1000)); 这并不真正“睡眠”JavaScript--它只是在一定的持续时间（以毫秒为单位）后执行传递给setTimeout的函数。 尽管可以为JavaScript编写睡眠函数，但
Currently I have calls like this all over my three controllers: $scope.getCurrentUser = function () { $http.post("/Account/CurrentUser", {}, postOptions) .then(function(data) { var result = angular.fromJson(data.data); if (result != null) { $scope.currentUser = result.id; } }, function(data) {
目前我有三个控制器都有这样的电话： $scope.getCurrentUser = function () { $http.post("/Account/CurrentUser", {}, postOptions) .then(function(data) { var result = angular.fromJson(data.data); if (result != null) { $scope.currentUser = result.id; } }, function(data) { alert("Brows
I want to calculate/store some statistics information using JavaScript, the equivalent code in C# is below (features I need are -- key-value pair, string/int key value pair, manipulate values by keys, etc.), any ideas how to implement the same function in JavaScript? Looks like there is no built-in Dictionary or Hashtable? Dictionary<string, int> statistics; statistics["Foo"] = 10; stati
我想用JavaScript计算/存储一些统计信息，C＃中的等效代码在下面（我需要的功能是 - 键值对，字符串/整型键值对，通过键操纵值等），任何想法如何在JavaScript中实现相同的功能？ 看起来像没有内置的字典或散列表？ Dictionary<string, int> statistics; statistics["Foo"] = 10; statistics["Goo"] = statistics["Goo"] + 1; statistics.Add("Zoo", 1); 使用JavaScript对象作为关联数组。 关联数组：简单来说，关联
As made clear in update 3 on this answer, this notation: var hash = {}; hash[X] does not actually hash the object X ; it actually just converts X to a string (via .toString() if it's an object, or some other built-in conversions for various primitive types) and then looks that string up, without hashing it, in " hash ". Object equality is also not checked - if two different obje
正如在这个答案的更新3中所表明的那样： var hash = {}; hash[X] 实际上并不散列对象X ; 它实际上只是将X转换为一个字符串（如果它是一个对象，则通过.toString()或其他各种基本类型的内置转换），然后在“ hash ”中查看该字符串，而不用散列。 对象相等也不被检查 - 如果两个不同的对象具有相同的字符串转换，它们将只是相互覆盖。 鉴于此 - JavaScript中hashasps的有效实现？ （例如，对于任何操作， javascript hashma
I am searching a way to styling shadow DOM from the outside. For example, I would like to set the color of all text in all 'span.special' elements as RED. Including 'span.special' elements from shadow DOM. How I can do this? Previously there were ::shadow pseudo-element and /deep/ combinator aka >>> for this purpose. So I could write something like span.special, *:
我正在寻找一种从外部设计阴影DOM的方式。 例如，我想将所有'span.special'元素中的所有文本的颜色设置为RED。 包含来自影子DOM的'span.special'元素。 我如何做到这一点？ 此前有::阴影伪元素和/深/ combinator aka >>>为此目的。 所以我可以写一些类似的东西 span.special, *::shadow span.special { color: red } 但现在:: shadow ， / deep /和>>>已被弃用。 那么，我们有什
I need create named constant. for example: NAME_FIELD: { CAR : "car", COLOR: "color"} using: var temp = NAME_FIELD.CAR // valid var temp2 = NAME_FIELD.CAR2 // throw exception most of all I need to make this enum caused error if the key is not valid most of all I need to make this enum caused error if the key is not valid Unfortunately, you can't. The way yo
我需要创建命名常量。 例如： NAME_FIELD: { CAR : "car", COLOR: "color"} 使用： var temp = NAME_FIELD.CAR // valid var temp2 = NAME_FIELD.CAR2 // throw exception 最重要的是，如果密钥无效，我需要使这个枚举导致错误 最重要的是，如果密钥无效，我需要使这个枚举导致错误 不幸的是，你不能。 你使用伪枚举的方式是通常的方式，即在对象上创建属性，但是如果你尝试从不包含对象的
In the EXTJS 3, if I have a string like 'Fri Jul 13 00:00:00 EDT 2012' , how can I get date string '07/13/2012' ? Does EXTJS have some API to handle this ? Thanks ---- Update --- I found a way, like this if (Ext.isDate("Fri Jul 13 00:00:00 EDT 2012")) { var date1 = new Date("Fri Jul 13 00:00:00 EDT 2012"); var start_str
在EXTJS 3中，如果我有像'Fri Jul 13 00:00:00 EDT 2012'这样的字符串，如何获取日期字符串'07/13/2012'？ EXTJS是否有一些API来处理这个问题？ 谢谢 ----更新---我找到了一个方法，就像这样 if (Ext.isDate("Fri Jul 13 00:00:00 EDT 2012")) { var date1 = new Date("Fri Jul 13 00:00:00 EDT 2012"); var start_str = date1.format('m/d/Y');
i was searching Enum usage in javascript. i found one stackoverflow link Enums in JavaScript? it is good start. this link show one good use like var SIZE = { SMALL : {value: 0, name: "Small", code: "S"}, MEDIUM: {value: 1, name: "Medium", code: "M"}, LARGE : {value: 2, name: "Large", code: "L"} }; var currentSize = SIZE.MEDIUM; if (currentSize == SIZE.MEDIUM) { // this alerts: "1: Medium"
我在JavaScript中搜索Enum用法。 我发现一个stackoverflow链接在JavaScript中的枚举？ 这是一个好的开始。 这个链接显示了一个很好的用法 var SIZE = { SMALL : {value: 0, name: "Small", code: "S"}, MEDIUM: {value: 1, name: "Medium", code: "M"}, LARGE : {value: 2, name: "Large", code: "L"} }; var currentSize = SIZE.MEDIUM; if (currentSize == SIZE.MEDIUM) { // this alerts: "1: Medium" alert(currentSi
So, I was inspired by this question ( Enums in JavaScript? ) to get to work on a library insert for JavaScript to enable unmodifiable Enumerations. I have a decently working method defined already, but I'd like to flesh it out more. This concept makes use of Object.defineProperty (Documentation: Here) My current definition allows for : var obj1 = {}, obj2 = {}, obj3 = {}; // Straight de
所以，我受到了这个问题的启发（JavaScript中的Enums？）以开始使用JavaScript的库插件来启用不可修改的枚举。 我已经定义了一个体面的工作方法，但我希望更充实。 这个概念使用Object.defineProperty （Documentation：Here） 我目前的定义允许： var obj1 = {}, obj2 = {}, obj3 = {}; // Straight declaration (normal) obj1.Enum('RED','BLUE','GREEN'); obj1.RED // == 0 obj1.BLUE // == 1 obj1.GREEN // == 2