我有一个构建动态表的工具:
<div class="container">
<div class="row">
<div class="col">
<hr>
<h3>Insert your data</h3>
<button id="addTd" type="button" class="btn btn-primary">
Add Column
</button>
<button id="addTr" type="button" class="btn btn-primary">
Add Row
</button>
<button type="button" class="btn btn-danger" id="saveTable">Save table</button>
<hr>
<div class="table-responsive">
<table id="table-data" class="table table-bordered table-striped table-hover">
<thead>
<tr>
<th></th>
<th>
<button type="button" class="btn btn-primary removeColumn btn-block">Delete column</button>
<br>
<input class="form-control column_data" type="text" autofocus placeholder="Title" name="Name" value="Hello">
</th>
</tr>
</thead>
<tbody>
<tr class="tr_clone">
<td><button type="button" class="btn btn-primary removeRow">Delete row</button></td>
<td><input class="form-control row_data" type="text" autofocus placeholder="data" name="who" value="Bye"></td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
</div>
<div class="container">
<div class="row">
<div class="col">
<h2>
Rebuild table
</h2>
<table class="table table-bordered">
<thead>
<tr></tr>
</thead>
<tbody></tbody>
</table>
</div>
</div>
</div>
当我点击保存时,它会生成一个json并重建表:
$('#saveTable').on("click", function() {
var results={};
$('thead input').each(function(){
results[$(this).val()] = [];
});
var resultsKeys = Object.keys(results);
$('tbody input').each(function(){
var colIndex = $(this).parent().index();
var rowIndex = $(this).closest('tr').index();
results[resultsKeys[colIndex-1]].push($(this).val());
});
rebuild(results);
});
function rebuild(results) {
var data = "[" + JSON.stringify(results) +"]";
console.log(data);
data.forEach(obj => {
Object.keys(obj).forEach(key => {
$('thead').append($('<th>').text(key));
obj[key].forEach((e, i) => {
if(!$("tbody tr:eq("+i+")").length) $("<tr>").appendTo($("tbody"));
$("tbody tr:eq(" + i + ")").append($('<td>').text(e))
})
})
});
}
$('#table-data input').on("change", function() {
$(this).attr("value", $(this).attr("value"));
});
$(".table-striped tbody tr th input").each(function(){
$(this).addClass("column_data");
});
$("#addTr").on('click', function() {
var $tr = $('tbody tr.tr_clone');
var $clone = $tr.clone();
$clone.find(':text').val('');
$tr.after($clone);
$(".table-striped tbody tr td input").each(function(){
$(this).addClass("row_data");
});
});
$("#addTd").on("click", function(){
$(".table-striped thead tr").append('<th><button type="button" class="btn btn-primary removeColumn btn-block">Delete column</button><br><input class="form-control" type="text" autofocus placeholder="Title" name="Name"></th>');
$(".table-striped tbody tr").append('</td> <td><input type="text" placeholder="data" name="datepicker_end" class="form-control"></td>');
$(document).find("thead th input").each(function(){
$(this).addClass("column_data");
});
$(".table-striped tbody tr td input").each(function(){
$(this).addClass("row_data");
});
});
$(document).on("click", ".removeRow", function(){
$(this).parent().parent()
$(this).parent().parent().remove();
});
$(document).on("click", ".removeColumn", function(){
var index = $(this).parent().index() + 1;
$(this).closest("table").find("td:nth-child(" + index + ")").remove();
$(this).parent().remove();
});
但是那给了我:
未捕获的TypeError:data.forEach不是函数
答案 0 :(得分:2)
问题在于数据是字符串而不是数组。
Use data = JSON.parse(data);