How to pass props to {this.props.children}

I'm trying to find the proper way to define some components which could be used in a generic way: <Parent> <Child value="1"> <Child value="2"> </Parent> There is a logic going on for rendering between parent and children components of course, you can imagine <select> and <option> as an example of this logic. This is a dummy implementation for the pu

如何将道具传递给{this.props.children}

我试图找到正确的方式来定义一些可以以通用方式使用的组件: <Parent> <Child value="1"> <Child value="2"> </Parent> 当然,在父组件和子组件之间进行渲染时有一种逻辑,你可以将<select>和<option>想象成这种逻辑的一个例子。 这是针对该问题的虚拟实现: var Parent = React.createClass({ doSomething: function(value) { }, render: function() { return (<div&

jQuery attr vs. prop, there are a list of props?

This is not a duplicate question, I need only to decide if the better/fast/correct is to use attr or to use prop . The simplest and reliable way is checking into a list. A "list of element-name where the better is use prop(name) and/or a list where the better is use attr(name) ". PS: I am using jQuery 1.9+, and suppose that attr() is not a deprecated method. Example of decisions (

jQuery attr与道具,有道具列表?

这不是一个重复的问题,我只需要确定更好/更快/更正是使用attr还是使用prop 。 最简单可靠的方法是检查一个列表。 “使用prop(name)和/或使用attr(name)更好的列表的元素名称列表”。 PS:我正在使用jQuery 1.9+,并且假设attr()不是已弃用的方法。 决定的例子 (LIST有答案的地方): ( $(x).prop('id')或$(x).attr('id') ? 用$(x).prop('title','BLABLA')还是用$(x).attr('titl

jQuery attr vs prop?

Now this isn't just another What's the difference question, I have done some tests(http://jsfiddle.net/ZC3Lf/) modifying the prop and attr of <form action="/test/"></form>​ with the output being: 1) prop Modification test Prop: http://fiddle.jshell.net/test/1 Attr: http://fiddle.jshell.net/test/1 2) Attr Modification test Prop: http://fiddle.jshell.net/test

jQuery attr vs道具?

现在这不只是另一个有什么区别的问题,我已经做了一些测试(http://jsfiddle.net/ZC3Lf/)修改<form action="/test/"></form>​的prop和attr 。其输出是: 1)道具修改测试 支柱: http://fiddle.jshell.net/test/1 : http://fiddle.jshell.net/test/1 Attr: http://fiddle.jshell.net/test/1 : http://fiddle.jshell.net/test/1 2)Attr修改测试 支柱: http://fiddle.jshell.net/test/1 : htt

jQuery Data vs Attr?

What is the difference in usage between $.data and $.attr when using data-someAttribute ? My understanding is that $.data is stored within jQuery's $.cache , not the DOM. Therefore, if I want to use $.cache for data storage, I should use $.data . If I want to add HTML5 data-attributes, I should use $.attr("data-attribute", "myCoolValue") . If you are passing data to

jQuery数据vs Attr?

使用data-someAttribute时, $.data和$.attr之间的用法有什么区别? 我的理解是$.data存储在jQuery的$.cache ,而不是DOM。 因此,如果我想使用$.cache存储数据,我应该使用$.data 。 如果我想添加HTML5数据属性,我应该使用$.attr("data-attribute", "myCoolValue") 。 如果您要将数据从服务器传递给DOM元素,则应该在元素上设置数据: <a id="foo" data-foo="bar" href="#">foo!</a>

Remove whitespaces inside a string in javascript

I've read this question about javascript trim, with a regex answer. Then I expect trim to remove the inner space between Hello and World. function myFunction() { alert("Hello World ".trim()); } EDITED Why I expected that!? Nonsense! Obviously trim doesn't remove inner spaces!, only leading and trailing ones, that's how trim works, then this was a very wrong question, my a

在javascript中删除字符串内的空格

我读过关于JavaScript trim的这个问题,用正则表达式来回答。 然后我期望修剪可以移除Hello和World之间的内部空间。 function myFunction() { alert("Hello World ".trim()); } EDITED 为什么我期待!? 废话! 很显然,修剪并不会去除内部空间!只有前后的内容才是修剪的结果,那么这是一个非常错误的问题,我的道歉。 用于删除空格字符 "hello world".replace(/s/g, ""); 对于所有的空白在下面的评论中使用Ro

Remove ALL white spaces from text

Possible Duplicate: Replace all spaces in a string with '+' $("#topNav" + $("#breadCrumb2nd").text().replace(" ", "")).addClass("current"); This is a snippet from my code. I want to add a class to an ID after getting another ID's text property. The problem with this, is the ID holding the text I need, contains gaps between the letters. I would like the white spaces removed. I

从文本中删除所有空格

可能重复: 用'+'替换字符串中的所有空格 $("#topNav" + $("#breadCrumb2nd").text().replace(" ", "")).addClass("current"); 这是我的代码片段。 我想在获得另一个ID的文本属性后向类ID添加一个类。 这个问题,是ID持有我需要的文本,包含字母之间的差距。 我想删除空格。 我试过TRIM()和REPLACE()但这只是部分工作。 REPLACE()仅删除第一个空格。 你必须告诉replace()重复正则表达式: .replace(/ /g,'

How can I check if string contains characters & whitespace, not just whitespace?

What is the best way to check if a string contains only whitespace? The string is allowed to contain characters combined with whitespace, but not just whitespace. 而不是检查整个字符串以查看是否只有空白,只需检查是否至少有一个非空白字符: if (/S/.test(myString)) { // string is not empty and not just whitespace } if (/^s+$/.test(myString)) { //string contains only whitespace } 这将检查

我如何检查字符串是否包含字符和空格,而不仅仅是空白?

检查字符串是否只包含空格的最佳方法是什么? 该字符串允许包含与空白字符相结合的字符,而不仅仅是空白字符。 而不是检查整个字符串以查看是否只有空白,只需检查是否至少有一个非空白字符: if (/S/.test(myString)) { // string is not empty and not just whitespace } if (/^s+$/.test(myString)) { //string contains only whitespace } 这将检查一个或多个空白字符,如果它也匹配空字符串,则用*替换+ 。 那

point maths query

Okay so I get that some numbers can't be represented properly in binary just like 1/3 can't be fully represented in decimal. So how come when I console.log(0.3) it returns 0.3 but when I console.log(0.1 + 0.2) it returns the 0.30000000000000004 How come it is accounting for the error (if it even is) when simply outputting 0.3 but doesn't when the addition occurs? Suppose we appr

点数学查询

好吧,所以我得到一些数字不能用二进制正确表示,就像1/3不能完全用十进制表示。 那么怎么会当我console.log(0.3)它返回0.3,但是当我console.log(0.1 + 0.2)它返回0.30000000000000004 如何简单地输出0.3而不是加法时出现错误(如果它是)? 假设我们近似于十进制的1/3和2/3。 1/3 = 0.333 2/3 = 0.667 我们加1/3 + 1/3: 1/3+1/3 = 0.333 + 0.333 = 0.666 我们没有得到2/3的近似值。 将1/3舍入到我们可以用十进

How to deal with floating point number precision in JavaScript?

I have the following dummy test script: function test(){ var x = 0.1 * 0.2; document.write(x); } test(); This will print the result 0.020000000000000004 while it should just print 0.02 (if you use your calculator). As far as I understood this is due to errors in the floating point multiplication precision. Does anyone have a good solution so that in such case I get the correct result

如何处理JavaScript中的浮点数精度?

我有以下虚拟测试脚本: function test(){ var x = 0.1 * 0.2; document.write(x); } test(); 这将打印结果0.020000000000000004而它应该只打印0.02 (如果你使用你的计算器)。 据我了解这是由于浮点乘法精度的错误。 有没有人有一个好的解决方案,以便在这种情况下,我得到0.02的正确结果? 我知道有功能,如toFixed或倒圆会是另一种可能性,但我真的希望有印无任何切割和四舍五入的整数。 只是想知道你们中的

How can I display a JavaScript object?

How do I display the content of a JavaScript object in a string format like when we alert a variable? The same formatted way I want to display an object. With Firefox If you want to print the object for debugging purposes, I suggest instead installing Firebug for Firefox and using the code: console.log(obj) With Chrome var obj = {prop1: 'prop1Value', prop2: 'prop2Value', child: {childPro

我怎样才能显示一个JavaScript对象?

如何以字符串格式显示JavaScript对象的内容,就像我们alert变量一样? 我想要显示一个对象的格式相同。 使用Firefox 如果你想打印对象用于调试目的,我建议安装Firebug for Firefox并使用代码: console.log(obj) 使用Chrome var obj = {prop1: 'prop1Value', prop2: 'prop2Value', child: {childProp1: 'childProp1Value'}} console.log(obj) 将显示 注意:您只能记录对象。 例如,这将不起作用: console.log('My