今天来教大家如何使用 ale.js 制作一个小而美的表格编辑器，首先先上 gif：是不是还是有一点非常 cool 的感觉的？那么我们现在开始吧！这是我们这篇文章结束后完成的效果（如果想继续完成请访问第五篇文章）：ok，那继续开始吧（本篇文章是表格编辑器系列的第四篇文章，如果您还没有看过第一篇，请访问 第一篇文章（开源中国））：首先我们需要先添加一个 Sreach 按钮（在 handleTemplateRender 函数里）：//把 定义DOM基本结构 的 returnValvar returnVal = “<table><thead><tr>”//改为var returnVal = “<table><thead><button class=‘a-btn’ onclick=‘this.methods.trigSearch()’>Search</button><tr>“之后我们需要在 methods 里面添加一个 trigSearch 函数：trigSearch(){ if (this.data.isOpenSearch) { this.data.data = this.staticData.preData; this.data.isOpenSearch = false; } else { this.data.isOpenSearch = true; }}接下来，我们需要在 data 里添加一个 isOpenSearch 变量，默认为 false：isOpenSearch: false还要在 staticData 里添加一个 preData，用来存储 bookData 数据：preData: [ [“The Lord of the Rings”, " J. R. R. Tolkien”, “English”, “1954-1955”, “150 million”], [“The Little Prince”, “Antoine de Saint-Exupéry”, “French”, “1943”, “140 million”], [“Dream of the Red Chamber”, “Cao Xueqin”, “Chinese”, “1791”, “100 million”]]之后我们要在 handleTemplateRender 函数中增加一个判断，判断是否 openSearch 开启了：//把//循环遍历bookHeader数据并输出this.data.bookHeader.forEach(function(val, i, arr) { returnVal += “<th onclick=‘this.methods.handleTheadOnclick(event)’>” + val + (sortBy === i ? getSortSign() : ‘’) + “</th>”;})returnVal += “</thead></tr><tbody>”;//改为//循环遍历bookHeader数据并输出this.data.bookHeader.forEach(function(val, i, arr) { returnVal += “<th onclick=‘this.methods.handleTheadOnclick(event)’>” + val + (sortBy === i ? getSortSign() : ‘’) + “</th>”;})var cellId = -1;if (this.data.isOpenSearch) { //这里增加判断 returnVal += “</tr><tr>”; for (var i = 0; i < this.data.bookHeader.length; i++) { cellId++; returnVal += “<th><input data-cell=’” + cellId + “’ type=‘text’ oninput=‘this.methods.handleSearch(this, event)’ placeHolder=‘Search…’></th>”; }}returnVal += “</thead></tr><tbody>";然后我们要继续在 methods 里面添加一个名叫 handleSearch 的函数：handleSearch(el, e) { var newData = [], elVal = el.value; this.staticData.preData.forEach(function(val, i, arr) { //判断是否拥有输入的字段 if (val[e.target.dataset.cell].indexOf(elVal) !== -1) { //添加到返回对列中 newData.push(val); } }); this.data.bookData = newData;}现在我们就已经实现了搜索功能，恭喜！这是我们目前全部的 js 代码：Ale(“excel”, { template() { return this.methods.handleTemplateRender(); }, methods: { handleTemplateRender() { //定义DOM基本结构 var returnVal = “<table><thead><button class=‘a-btn’ onclick=‘this.methods.trigSearch()’>Search</button><tr>”, getSortSign = this.methods.getSortSign, sortBy = this.staticData.sortBy, rowId = -1, edit = this.data.edit; //循环遍历bookHeader数据并输出 this.data.bookHeader.forEach(function(val, i, arr) { returnVal += “<th onclick=‘this.methods.handleTheadOnclick(event)’>” + val + (sortBy === i ? getSortSign() : ‘’) + “</th>”; }) var cellId = -1; if (this.data.isOpenSearch) { returnVal += “</tr><tr>”; for (var i = 0; i < this.data.bookHeader.length; i++) { cellId++; returnVal += “<th><input data-cell=’” + cellId + “’ type=‘text’ oninput=‘this.methods.handleSearch(this, event)’ placeHolder=‘Search…’></th>”; } } returnVal += “</thead></tr><tbody>”; //循环遍历bookData数据并输出 this.data.bookData.forEach(function(thisBook, i, arr) { var cellId = -1; rowId++; //输出一行 returnVal += “<tr>”; thisBook.forEach(function(val, i, arr) { cellId++; if (rowId === edit.row && cellId === edit.cell) { returnVal += “<td><form data-cell=’” + cellId + “’ data-row=’” + rowId + “’ onsubmit=‘this.methods.save(event)’><input type=‘text’ value=’” + val + “’></form></td>”; } else { returnVal += “<td data-cell=’” + cellId + “’ data-row=’” + rowId + “’ ondblclick=‘this.methods.handleBlockOndblclick(event)’>” + val + “</td>”; } }) returnVal += “</tr>”; }) returnVal += “</tbody></table>”; //返回DOM结构 return returnVal; }, handleTheadOnclick(e) { this.methods.changeSortType(e); this.methods.sortList(e); }, changeSortType(e) { this.staticData.sortBy = e.target.cellIndex; if (this.staticData.sortType === “up”) { this.staticData.sortType = “down”; } else { this.staticData.sortType = “up”; } }, sortList(e) { var index = e.target.cellIndex; if (this.staticData.sortType === “up”) { this.data.bookData.sort(function(a, b) { return a[index].charCodeAt(0) > b[index].charCodeAt(0) ? 1 : -1; }) } else { this.data.bookData.sort(function(a, b) { return a[index].charCodeAt(0) < b[index].charCodeAt(0) ? 1 : -1; }) } this.data.bookData = this.data.bookData; }, getSortSign() { if (this.staticData.sortType === “up”) { return ‘\u2191’; } else { return ‘\u2193’; } }, handleBlockOndblclick(e) { if (!this.staticData.isOpenEdit) { this.staticData.isOpenEdit = true; this.data.edit = { row: parseInt(e.target.dataset.row), cell: parseInt(e.target.dataset.cell) } } }, save(e) { e.preventDefault(); var input = e.target.firstChild; this.staticData.isOpenEdit = false; this.data.edit = { row: -1, cell: -1 } this.data.bookData[e.target.dataset.row][e.target.dataset.cell] = input.value; this.data.bookData = this.data.bookData; }, trigSearch() { if (this.data.isOpenSearch) { this.data.bookData = this.staticData.preData; this.data.isOpenSearch = false; } else { this.data.isOpenSearch = true; } }, handleSearch(el, e) { var newData = [], elVal = el.value; this.staticData.preData.forEach(function(val, i, arr) { if (val[e.target.dataset.cell].indexOf(elVal) !== -1) { newData.push(val); } }); this.data.bookData = newData; } }, data: { bookHeader: [ “Book”, “Author”, “Language”, “Published”, “Sales” ], bookData: [ [“The Lord of the Rings”, " J. R. R. Tolkien”, “English”, “1954-1955”, “150 million”], [“The Little Prince”, “Antoine de Saint-Exupéry”, “French”, “1943”, “140 million”], [“Dream of the Red Chamber”, “Cao Xueqin”, “Chinese”, “1791”, “100 million”] ], edit: { row: -1, cell: -1 }, isOpenSearch: false }, staticData: { sortBy: -1, sortType: ‘down’, isOpenEdit: false, preData: [ [“The Lord of the Rings”, " J. R. R. Tolkien”, “English”, “1954-1955”, “150 million”], [“The Little Prince”, “Antoine de Saint-Exupéry”, “French”, “1943”, “140 million”], [“Dream of the Red Chamber”, “Cao Xueqin”, “Chinese”, “1791”, “100 million”] ] } }) Ale.render(“excel”, { el: “#app” })如果想了解更多，欢迎关注我在明天推出的第五篇教程，同时也关注一下 alejs 哦，感谢各位！（非常重要：如果有能力的话不妨去 Github 或 码云 上 star 一下我们吧！不过如果您特别喜欢 alejs 的话也可以 watch 或 fork 一下哦！十分感谢！）
...