each | 易学教程

vue scss 一键更换主题色，字体等页面等页面大体样式

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主要采用scss 编程式思想实现以上文件从上到下进行说明 _variables.scss 文件主要写主题色字体边框等变量内容如下： ————————————————————————————————————————————————— // colors $colors: ( // 主题色 'primary': #0066ff, "header-bg":#fff, "header-text":#000, 'pages-bg': #f6f7fb, 'border-color': #f2f2f2, 'page-bottom': #d4d9de, 'status-color': #c3672c, 'info': #4b67af, 'danger': #791a15, 'blue-1': #1f3695, 'blue': #1e78ff, 'gree': #07c160, 'white': #fff, 'white-1': #fcfcfc, 'white-2': #eceef0, 'light': #f9f9f9, 'light-1': #d4d9de, 'grey': #808080, 'grey-1': #666, 'dark-1': #343440, 'dark': #222, 'black': #212121, 'end': #fcb102, //warrary 页面steps

Jvectormap highlight Multiple countries

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问题 I am currently using JvectorMap and trying to highlight multiple countries when hovering over text, I have gotten it to a point where if i hover over the word Africa, it will highlight the entire map, how would i filter it to highlight only Africa when i am hovering over the content name of Africa. currently i am creating a list of continents using a jQuery.each and i am returning continentCodes , which contains all of the country codes (ZA, US) with a color assigned to them... I have tried

学习笔记之scikit-learn

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scikit-learn: machine learning in Python — scikit-learn 0.20.0 documentation https://scikit-learn.org/stable/index.html Simple and efficient tools for data mining and data analysis Accessible to everybody, and reusable in various contexts Built on NumPy, SciPy, and matplotlib Open source, commercially usable - BSD license scikit-learn - Wikipedia https://en.wikipedia.org/wiki/Scikit-learn Scikit-learn (formerly scikits.learn ) is a free software machine learning library for the Python programming language. [3] It features various classification , regression and clustering algorithms including

jquery each add class with delay inbetween

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问题 I need to loop through each div .row to add or remove a flip class that has a CSS3 3D transform effect. When I apply this add/remove class to each ".row" with jquery each(), all the divs get the class ".flip" added or removed at the exact same time. I need this to be delayed so it looks like a domino effect. Any idea how I can get this working? Or how to add / remove the flip class one by one?? This is what I've found but it is not working: $('.row').each(function(i){ if($(this).hasClass(

$(…).each is not a function

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问题 I'm trying to get the text inside all h2 tags on a page, using the web console. All I've found says to use each, I've tried var anArray = []; $('h2').each( function(i,e) { anArray.push($(e).innerHTML); }); But it returns TypeError: $(...).each is not a function. I've also tried using $.each('h2', function(i,e) { anArray.push($(e).innerHTML); }); But again, all I get is TypeError: $.each is not a function? 回答1: 1) Paste: var script = document.createElement('script'); script.src = "https://ajax

Javascript - returning concatenates instead of sum of variables from input

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问题 I am trying to get values from input field using .each() and adding them to show the sum in another input value. But unfortunately in spite of using parseInt() I am unable to get sum. HTML <input type=text name=value[] id=value class="value"> <input type=text name=value[] id=value class="value"> <input type=text name=totalvalue id=totalvalue> JavaScript var totalvalue = parseInt(0); $(document).on("focusout",".value",function() { $(".value").each(function() { totalvalue = parseInt(totalvalue

Javascript - returning concatenates instead of sum of variables from input

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Thymeleaf: How to loop through a list in inverse order?

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问题 I have a list called 'notifications' and I use Thymeleaf 'each method' to access its elements one by one. I can do this successfully as below. <li th:each="n : *{notifications}"> <h4 type="text" th:text="*{n.message}"></h4> </li> note: 'message' is the attribute I need to retrieve from the list. How can I access the elements in the reverse order? For an example if this is my current output, Cat Dog Rat How can I get output as this? Rat Dog Cat 回答1: I would reverse it server side, if possible.

【algo&ds】【pat】5.并查集及其应用

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1.并查集的定义在计算机科学中，并查集是一种树型的数据结构，用于处理一些不交集（Disjoint Sets）的合并及查询问题。有一个联合-查找算法（union-find algorithm）定义了两个用于此数据结构的操作： Find ：确定元素属于哪一个子集。 Union ：将两个子集合并成同一个集合。 MakeSet ，用于建立单元素集合。为了更加精确的定义这些方法，需要定义如何表示集合。一种常用的策略是为每个集合选定一个固定的元素，称为代表，以表示整个集合。接着， Find(x) 返回 x 所属集合的代表，而 Union 使用两个集合的代表作为参数。并查集森林是一种将每一个集合以树表示的数据结构，其中每一个节点保存着到它的父节点的引用比如上面是两个集合分别记为A和B，集合A有4个元素，集合B有3个元素，每个元素都只对应一个集合，也就是一对一，对于集合的表示，通常都是使用根节点来判断，也就是说，1和5分别表示两个集合 //集合1的元素 1,2,3,4 //集合5的元素 5,6,7 那么 find(1)=1 find(2)=1 find(3)=1 find(4)=1 find(5)=5 find(6)=5 find(7)=5 2.并查集的基本操作 2.1并查集的存储结构并查集通常用一个数组来表示， int father[N]; 其中father[i

How can I show that the Ruby `for` loop is in fact implemented using the `each` method?

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问题 In the book Eloquent Ruby (page 21, first edition, sixth printing) , the author (Russ Olsen) advocates using the each method instead of the for loop and this is in line with everything I've read elsewhere. However the author also goes on to say that one reason to do so is that the for loop does in fact call the each method, so why not just cut out the middle-man and use each ? So I was wondering how this actually works. To investigate I did do a search on the Ruby repo on github, but was