Programmatically Lighten or Darken a hex color (or rgb, and blend colors)

Here is a function I was working on to programmatically lighten or darken a hex color by a specific amount. Just pass in a string like "3F6D2A" for the color ( col ) and a base10 integer ( amt ) for the amount to lighten or darken. To darken, pass in a negative number (ie -20). The reason for me to do this was because of all the solutions I found, thus far, they seemed to over-compl

以编程方式使亮度变暗或变暗十六进制颜色(或rgb和混合颜色)

这是我正在努力的一个功能,以程序化的方式减轻或加深一个特定量的十六进制颜色。 只需传递像"3F6D2A"的颜色( col )和一个base10整数( amt )的字符串,以使亮度变暗或变暗。 变暗,传入负数(即-20)。 我之所以这样做是因为我发现的所有解决方案,迄今为止,它们似乎使问题过度复杂化。 我有一种感觉,它可以用几行代码完成。 如果您发现任何问题,请告诉我,或者做出任何调整以加快速度。 function Lighte

JavaScript Google Maps API and web application on IPhone

I have developed a web application for mobile phones that uses JavaScript Google API. It works fine on any Android phone however on IPhone the map is not "dragable" - I can't move the map (I click on a map and try to move it but it stays the same as if I was trying to move a static image). I found some information pointing out that it is a bug on the IPhone side. If it is true -

在iPhone上使用JavaScript Google Maps API和Web应用程序

我开发了一款使用JavaScript Google API的手机Web应用程序。 它可以在任何Android手机上正常工作,但是在iPhone上,地图不是“可拖动的” - 我无法移动地图(我点击地图并尝试移动地图,但它保持不变,就像我试图移动静态地图一样图片)。 我发现一些信息指出这是iPhone侧的一个错误。 如果确实如此 - 是否有任何解决方法? 我开发的应用程序被用作使用JavaScript Google Maps API V3的Web应用程序,而不是iPhone应用程序。

Javascript add leading zeroes to date

I've created this script to calculate the date for 10 days in advance in the format of dd/mm/yyyy: var MyDate = new Date(); var MyDateString = new Date(); MyDate.setDate(MyDate.getDate()+10); MyDateString = MyDate.getDate() + '/' + (MyDate.getMonth()+1) + '/' + MyDate.getFullYear(); I need to have the date appear with leading zeroes on the day and month component by way of adding these rule

JavaScript添加前导零

我已经创建了这个脚本来计算提前10天的日期,格式为dd / mm / yyyy: var MyDate = new Date(); var MyDateString = new Date(); MyDate.setDate(MyDate.getDate()+10); MyDateString = MyDate.getDate() + '/' + (MyDate.getMonth()+1) + '/' + MyDate.getFullYear(); 我需要通过将这些规则添加到脚本中,使日期在日期和月份组件中以前导零显示。 我似乎无法得到它的工作。 if (MyDate.getMonth < 10)getMonth = '0' + ge

Selecting all text in HTML text input when clicked

I have the following code to display a textbox in a HTML webpage. <input type="text" id="userid" name="userid" value="Please enter the user ID" /> When the page displays, the text contains the Please enter the user ID message. However, I found that the user needs to click 3 times in order to select all the text (in this case it is Please enter the user ID). Is it possible to select the

单击时选择HTML文本输入中的所有文本

我有以下代码在HTML网页中显示文本框。 <input type="text" id="userid" name="userid" value="Please enter the user ID" /> 当页面显示时,文本包含请输入用户ID消息。 但是,我发现用户需要点击3次以选择所有文本(在这种情况下,请输入用户ID)。 只需点击一下就可以选择整个文本吗? 编辑: 对不起,我忘了说:我必须使用input type="text" 你可以使用这个JavaScript片段: <input onClick="

How to give opacity for div when it is set Overflow=visible

I have 1 div and 1 image tag , one upon the other. Div is smaller than image . I have set overflow=visible for div . My question is that, when I insert an image to image tag, the content which is overflowed through div should be opacity=0.5 like this. for me it shows like this.. any help <div style="border-style: solid; border-width: 2px; height: 5cm; width: 8cm;top: 20px; left: 20px; po

如何在div设置为不透明度时设置Overflow =可见

我有1 div和1 image标记,一个在另一个上。 Div比image小。 对于div我设置了overflow=visible 。 我的问题是,当我插入一个图像到图像标签时,通过div溢出的内容应该是这样的opacity=0.5 。 对我来说,它显示这样..任何帮助 <div style="border-style: solid; border-width: 2px; height: 5cm; width: 8cm;top: 20px; left: 20px; position: relative; overflow: visible;" id="divimg"> <img src="https://st

How does Relay / GraphQL 'resolve' works?

I am trying out Relay and GraphQL. When I am doing the schema I am doing this: let articleQLO = new GraphQLObjectType({ name: 'Article', description: 'An article', fields: () => ({ _id: globalIdField('Article'), title: { type: GraphQLString, description: 'The title of the article', resolve: (article) => article.getTitle(), }, author: { type: u

Relay / GraphQL'resolve'是如何工作的?

我正在尝试Relay和GraphQL。 当我在做模式时,我正在这样做: let articleQLO = new GraphQLObjectType({ name: 'Article', description: 'An article', fields: () => ({ _id: globalIdField('Article'), title: { type: GraphQLString, description: 'The title of the article', resolve: (article) => article.getTitle(), }, author: { type: userConnection,

Adding setTimeout UL menu using JavaScript

I am trying to add a delay to a drop down menu. I want the menu to stay visible for about two seconds after the cursor has moved away from it. Here is an example of my HTML. <ul class="select"> <li><a><b>Home</b></a></li> <li><a><b>Accommodation</b></a> <ul class="sub"> <li><a>Hotels</a&g

使用JavaScript添加setTimeout UL菜单

我正在尝试在下拉菜单中添加延迟。 我希望菜单在光标离开它后约两秒钟可见。 这是我的HTML的一个例子。 <ul class="select"> <li><a><b>Home</b></a></li> <li><a><b>Accommodation</b></a> <ul class="sub"> <li><a>Hotels</a></li> <li><a>Luxury Villas</a></li>

Change font size to fit a variable width container

I'm trying to fluidly scale the font size to fill its variable-width container using jQuery TextFill. Trouble is, I think this only works with fixed-width containers. I want to use this on a site with a responsive grid. Here's my test, which confirms jQuery TextFill doesn't work on variable-width containers: http://jsfiddle.net/9uqcjdpy/1/ If you resize the window, you'll se

更改字体大小以适应可变宽度的容器

我试图流畅地缩放字体大小,以使用jQuery TextFill填充其可变宽度容器。 麻烦的是,我认为这只适用于固定宽度的容器。 我想在具有响应式网格的网站上使用此功能。 这是我的测试,它确认jQuery TextFill不适用于可变宽度容器:http://jsfiddle.net/9uqcjdpy/1/ 如果您调整窗口大小,您会看到底部的d​​iv调整大小,但文本不会缩放。 如果您更改顶部容器的像素宽度,则会看到文字比例,但div无法调整大小。 我也试图在一个

Resize text based on div width

I'm looking for a solution for this that has more precision than breakpoints. I'm aware this will require JavaScript but I am having trouble finding a suitable plugin. The majority of text on my site will stay the same, or I will simply adjust it with media queries (say 90% for tablet and mobile). That's fine, but I'm looking for a "real-time" solution" for area

根据div宽度调整文本大小

我正在寻找一个比断点更精确的解决方案。 我知道这将需要JavaScript,但我无法找到合适的插件。 我网站上的大部分文字都会保持不变,或者我会简单地用媒体查询进行调整(例如平板电脑和手机的90%)。 这很好,但我正在寻找一个“实时”解决方案“,用于我的导航菜单和横幅等领域。 在这里看到的网站 你可以看到我的所有文本都是相对的,并且使用ems ,基本字体大小为100% 如果您调整网站的大小,您会注意到菜单“崩溃”,

Dynamically Resize Text Based on Container Width

I'm working on a responsive design and I have some display <h3> tags that I would like to scale down when the width of the browser window is reduced. The initial setup, based on a width of 960px: The body font-size is set to 14px The font-size of the h3 tag is 40px The width of the containing div is 230px So here's what I worked out for the javascript/jQuery: $(window).re

根据容器宽度动态调整文本大小

我正在设计一个响应式设计,并且我有一些显示<h3>标记,当浏览器窗口宽度减小时,我想缩小它。 初始设置基于960px的宽度: 正文字体大小设置为14px h3标签的字体大小是40px 包含div的宽度是230px 所以这里是我为javascript / jQuery所做的工作: $(window).resize(function(){ var containerSize = $('.container').width(); var textPercentage = 0.17391304347826086956521739130435; /* 40/230 */