从两个数组中选择随机项目并匹配项目顺序

Question

每当div单击时，此代码就会以随机顺序随机排列三个数组。 我希望两个数组“ quotes”和“ authors”显示相同的随机数组顺序。 我希望“第三”等于“-第三”，“第一”等于“-第一”，或者当x是随机的时，引号[x] == authors [x]。

还有没有一种简单的方法来组合.ready和.click函数，所以我没有在两者中放入完全相同的代码？

var colors = ["#3b609b", "#9b3b3b", "#3b9b81", "#7da5a4"];
var quotes = ["First", "Second", "Third", "Fourth"];
var authors = ["-First", "-Second", "-Third", "-Fourth"];

$(document).ready(function() {
  //Variables to shuffle through "colors", "quotes" and "authors" arrays.
  var rand = Math.floor(Math.random() * colors.length);
  var rand2 = Math.floor(Math.random() * quotes.length);
  var rand3 = Math.floor(Math.random() * authors.length);  
  //Display quotes/authors and change background colors.
  $("body, .button, .social").css("background-color", colors[rand]); 
  $(".quote").html(quotes[rand2]).css("color", colors[rand]);
  $(".author").html(authors[rand3]).css("color", colors[rand]);

  $(".button").click(function() {
  //Variables to shuffle through "colors", "quotes" and "authors" arrays.
  var rand = Math.floor(Math.random() * colors.length);
  var rand2 = Math.floor(Math.random() * quotes.length);
  var rand3 = Math.floor(Math.random() * authors.length);
  //Display quotes/authors and change background colors when div is clicked.
  $("body, .button, .social").css("background-color", colors[rand]); 
  $(".quote").html(quotes[rand2]).css("color", colors[rand]);
  $(".author").html(authors[rand3]).css("color", colors[rand]);
  });
});

Answer 1

您可以将这种逻辑引入另一个函数中！

var colors = ["#3b609b", "#9b3b3b", "#3b9b81", "#7da5a4"];
var quotes = ["First", "Second", "Third", "Fourth"];
var authors = ["-First", "-Second", "-Third", "-Fourth"];

function handle() {
  //Variables to shuffle through "colors", "quotes" and "authors" arrays.
  var rand = Math.floor(Math.random() * colors.length);
  var rand2 = Math.floor(Math.random() * quotes.length);
  var rand3 = Math.floor(Math.random() * authors.length);
  //Display quotes/authors and change background colors when div is clicked.
  $("body, .button, .social").css("background-color", colors[rand]); 
  $(".quote").html(quotes[rand2]).css("color", colors[rand]);
  $(".author").html(authors[rand3]).css("color", colors[rand]);
}

$(document).ready(function() {
  handle()
  $(".button").click(handle);
});

Answer 2

使用包含每个引号的所有内容的对象，然后简单地随机选择一个对象，即可访问该对象的所有元素。 这样可以防止出现多个数组，并使其代码结构更简洁，并且更易于维护和更新。

并不是说我简化了您的功能-一旦获得随机对象-您就可以使用对象属性来操纵其他元素。 我还建议使用带有颜色的类，然后添加或删除该类以实现CSS的颜色更改-添加类为元素着色比使用内联CSS更改更干净。

 var quotes = [ {color: "#3b609b", quote: "First", author: "-First"}, {color: "#9b3b3b", quote: "Second", author: "-Second"}, {color: "#3b9b81", quote: "Third", author: "-Third"}, {color: "#7da5a4", quote: "Fourth", author: "-Fourth"} ]; $(document).ready(function() { $('#clickMe').click(function(){ var randomQuote = quotes[Math.floor(Math.random() * quotes.length)]; $('#color').text('Color: ' + randomQuote.color); $('#quote').text('Quote: ' + randomQuote.quote); $('#author').text('Author: ' + randomQuote.author); }) }); 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <button type="button" id="clickMe">Click for a random quote</button> <p id ="color"></p> <p id ="quote"></p> <p id ="author"></p>