题解 | #数组排序#
数组排序
https://www.nowcoder.com/practice/18ea36ef9b0c470e9db7681eced6e8df
{"html":"<!DOCTYPE html>\r\n<html lang=\"en\">\r\n <head>\r\n <meta charset=\"UTF-8\">\r\n </head>\r\n <body>\r\n <button class='up'>销量升序</button>\r\n <button class='down'>销量降序</button>\r\n <ul></ul>\r\n\r\n <script>\r\n var cups = [\r\n { type: 1, price: 100, color: 'black', sales: 3000, name: '牛客logo马克杯' },\r\n { type: 2, price: 40, color: 'blue', sales: 1000, name: '无盖星空杯' },\r\n { type: 4, price: 60, color: 'green', sales: 200, name: '老式茶杯' },\r\n { type: 3, price: 50, color: 'green', sales: 600, name: '欧式印花杯' }\r\n ]\r\n var ul = document.querySelector('ul');\r\n var upbtn = document.querySelector('.up');\r\n var downbtn = document.querySelector('.down');\r\n // 补全代码\r\n //渲染默认显示内容\r\n let [{sales:s1,name:n1},{sales:s2,name:n2},{sales:s3,name:n3},{sales:s4,name:n4}] = cups;\r\n // console.log(s1,s2,s3,s4);\r\n let str= `<li>${n1}</li><li>${n2}</li><li>${n3}</li><li>${n4}</li>`;\r\n ul.innerHTML = str;\r\n //升序显示\r\n const arr = new Array();\r\n // for(let i = 0; i < cups.length;i++){\r\n // arr.push({n[i]:s[i]});\r\n // }\r\n arr.push({name:n1,sales:s1},{name:n2,sales:s2},{name:n3,sales:s3},{name:n4,sales:s4});\r\n upbtn.onclick = function(){\r\n const newarr = arr.sort((a,b) => a.sales - b.sales);\r\n console.log(newarr);\r\n ul.innerHTML = newarr.map(item => `<li>${item.name}</li>`).join(\"\");\r\n }\r\n\r\n downbtn.onclick = function(){\r\n const newarr = arr.sort((a,b) => b.sales - a.sales);\r\n console.log(newarr);\r\n ul.innerHTML = newarr.map(item => `<li>${item.name}</li>`).join(\"\");\r\n }\r\n </script>\r\n </body>\r\n</html>","css":"/* html, body {\\n\\twidth: 100%;\\n\\theight: 100%;\\n\\tmargin: 0;\\n\\tpadding: 0;\\n} */","js":"// 请在这里输入代码"}
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