如何使用Javascript按日期排序，然后按时间排序
How to sort by date and then by time using Javascript
我写了一个脚本来帮助我转换一个非常漫长而乏味的任务，即从段落中复制数字并将它们重新键入到表中。
但是，我需要能够按日期对这些"段落"进行排序，然后在每个日期内，必须按时间对它们进行排序（我知道 3333Z 不是有效时间，这只是为了测试并确保它正确排序）。
这就是它需要显示为最终产品的方式。我的代码生成此表的 CSV 版本，我将其粘贴到 Excel 中以获取该表。
March 4
--------------------------------------------------------------------------------------
| Value 1 | Value 2 | Value 3 | Value 4 | Value 3 | Value 6 |
--------------------------------------------------------------------------------------
| 1111Z | 1111Z | 12345.67 | 123456.123 | 123.123 | 456.78 |
--------------------------------------------------------------------------------------
| 2222Z | 2222Z | 12345.67 | 123456.123 | 123.123 | 456.78 |
--------------------------------------------------------------------------------------
| 3333Z | 3333Z | 12345.67 | 123456.123 | 123.123 | 456.78 |
--------------------------------------------------------------------------------------
March 12
--------------------------------------------------------------------------------------
| Value 1 | Value 2 | Value 3 | Value 4 | Value 3 | Value 6 |
--------------------------------------------------------------------------------------
| 1111Z | 1111Z | 12345.67 | 123456.123 | 123.123 | 456.78 |
--------------------------------------------------------------------------------------
| 2222Z | 2222Z | 12345.67 | 123456.123 | 123.123 | 456.78 |
--------------------------------------------------------------------------------------
| 3333Z | 3333Z | 12345.67 | 123456.123 | 123.123 | 456.78 |
--------------------------------------------------------------------------------------
March 29
--------------------------------------------------------------------------------------
| Value 1 | Value 2 | Value 3 | Value 4 | Value 3 | Value 6 |
--------------------------------------------------------------------------------------
| 1111Z | 1111Z | 12345.67 | 123456.123 | 123.123 | 456.78 |
--------------------------------------------------------------------------------------
| 2222Z | 2222Z | 12345.67 | 123456.123 | 123.123 | 456.78 |
--------------------------------------------------------------------------------------
| 3333Z | 3333Z | 12345.67 | 123456.123 | 123.123 | 456.78 |
--------------------------------------------------------------------------------------
我有一个名为 line1field2 的值，它的日期和时间格式为 DDHHHHZ。在上面的示例中，DD 将给出 4、12 和 29。然后必须按时间 （HHHH） 排序以创建表部件。
我知道这可以用其他语言完成，但是，由于系统要求，这必须是普通的JavaScript，没有像jQuery这样的库，并且它必须与FireFox 3.6.3一起使用。
下面的代码有效，但它不按日期分隔。
另外，我想将其另存为 CSV 文件（或将保留表格格式的文件）作为最终输出，我知道我可以用 PHP 做，但我认为我不能用 JavaScript 做到这一点。如果有人知道可以做到这一点的方法，请告诉我。
如果我不清楚任何事情，请问，我会尽力解释得更好。
谢谢
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Converter</title>
<style type="text/css">
body {
background: #C8C8C8;
margin: 10px;
font-size: 100%;
}
.floatstop {
clear: both;
}
.hidden {
display: none;
}
.unhidden {
display: block;
}
#button {
margin: 0px auto;
}
#instruction {
margin: 5px;
width: 500px;
}
#workspace {
background: #FFFFFF;
float: left;
margin: 0px auto;
height: 300px;
width: 505px;
border-style: ridge;
border-width: 5px;
border-color: gray;
}
#outer {
background: #F0F0F0;
width: 1035px;
margin: 0px auto;
padding: 10px;
border-style: solid;
border-width: 3px;
border-color: black;
}
#preview {
background: #FFFFFF;
float: right;
margin: 0px auto;
height: 300px;
width: 505px;
border-style: ridge;
border-width: 5px;
border-color: gray;
}
#viewCSV {
width: 500px;
}
#viewHTML {
width: 500px;
}
</style>
</head>
<body>
<script type="text/javascript" language="JavaScript">
//Select text function in Preview textarea
function selectText(id) {
document.getElementById(id).focus();
document.getElementById(id).select();
}
//Trim leading zeros
function trimNumber(s) {
while (s.substr(0, 1) == '0' && s.length > 1) { s = s.substr(1, 9999); }
return s;
}
//Trim leading zeros, but leave two digits before decimal point
function trimNumber2(s) {
while (s.substr(0, 2) == '00' && s.length > 1) { s = s.substr(1, 9999); }
return s;
}
var row = [];
var results = [];
function conversionCode() {
var pastedText = document.getElementById("pastedText").value; //get text from input
var para = pastedText.split("'n'n");
var i = 0;
for (i = 0; i < para.length; i++) { //start conversion loop
var report = para[i];
//Arrays are zero-based.
var splitLines = report.split('//');
var line1Arr = splitLines[0];
var line2Arr = splitLines[1];
var line3Arr = splitLines[2];
var line4Arr = splitLines[3];
var line5Arr = splitLines[4];
//Break out FIRST line.
var lineAAA = splitLines[0].split('/');
var datasetName1 = lineAAA[0];
var line1field1 = lineAAA[1];
var line1field2 = lineAAA[2];
var line1field3 = lineAAA[3];
var line1field4 = lineAAA[4];
var line1field5 = lineAAA[5];
var line1field6 = lineAAA[6];
var line1field7 = lineAAA[7];
var line1field8 = lineAAA[8];
var line1field9 = lineAAA[9];
//Break out SECOND line.
var lineBBBBB = splitLines[1].split('/');
var datasetName2 = lineBBBBB[0];
var line2field1 = lineBBBBB[1];
var line2field2 = lineBBBBB[2];
var line2field3 = lineBBBBB[3];
var line2field4 = lineBBBBB[4];
var line2field5 = lineBBBBB[5];
var line2field6 = lineBBBBB[6];
var line2field7 = lineBBBBB[7];
//Break out THIRD line.
var lineCCC = splitLines[2].split('/');
var dataSetName3 = lineCCC[0];
var line3field1 = lineCCC[1];
var line3field2 = lineCCC[2];
var line3field3 = lineCCC[3];
var line3field4 = lineCCC[4];
var line3field5 = lineCCC[5];
//Break out FOURTH line.
var lineDDDD1 = splitLines[3].split('/');
var dataSetName4 = lineDDDD1[0];
var line4field1 = lineDDDD1[1];
var line4field2 = lineDDDD1[2];
var line4field3 = lineDDDD1[3];
var line4field4 = lineDDDD1[4];
var line4field5 = lineDDDD1[5];
var line4field6 = lineDDDD1[6];
var line4field7 = lineDDDD1[7];
//Break out FIFTH line.
var lineDDDD2 = splitLines[4].split('/');
var dataSetName5 = lineDDDD2[0];
var line5field1 = lineDDDD2[1];
var line5field2 = lineDDDD2[2];
var line5field3 = lineDDDD2[3];
var line5field4 = lineDDDD2[4];
var line5field5 = lineDDDD2[5];
var line5field6 = lineDDDD2[6];
var line5field7 = lineDDDD2[7];
//Change variables to correct formating
//date - selecting and validating the date from line1field2
var date = line1field2.slice(0, -5);
var min = 1;
var max = 31;
var num = parseInt(date);
if (min > num || max < num) {
alert('Invalid date');
exit();
}
//Time - Correcting format
line1field2 = line1field2.slice(2);
line1field3 = line1field3.slice(2);
//line3field1 - remove letters from end of field, remove leading zeros
line3field1 = line3field1.slice(0, -3);
line3field1 = trimNumber(line3field1);
//line3field3 - Split field on ':'
line3field3 = line3field3.split(':');
line3field3 = line3field3[1];
//line4field1 - Split field on ':', and removing leading zeros
line4field1 = line4field1.split(':');
line4field1 = line4field1[1];
line4field1 = trimNumber(line4field1);
//line3field5 - Remove leading zeros, but keep at least two numbers before the
//decimal point (Example: 01.123)
line3field5 = line3field5.split(':');
line3field5 = line3field5[1];
line3field5 = trimNumber2(line3field5);
//Create Array for each row in table.
row[row.length] = line1field2;
row[row.length] = line1field3;
row[row.length] = line3field1;
row[row.length] = line3field3;
row[row.length] = line4field1;
row[row.length] = line3field5;
//Add each report's data to array'
results.push(row);
//Remove data from row for next loop
row = [];
}
//Sort results array for display
results = results.sort();
//Build HTML table
//Build CSV text
resultsHeader = "Value 1,Value 2,Value 3,Value 4,Value 5,Value 6" + "'n";
document.getElementById("plainOutput").innerHTML = resultsHeader;
for (i = 0; i < results.length; i++) {
document.getElementById("plainOutput").innerHTML += results[i] + "'n";
}
};
</script>
<div id="outer">
<h1 align="center">CONVERTER</h1>
<div id="workspace">
<h2 align="center">Workspace</h2>
<form action="" method="get" id="inputForm">
<textarea id="pastedText" style="width:500px" rows="10"></textarea>
<div id="button" class="floatstop">
<p><input type="button" value="Convert" onclick="conversionCode ()"></p>
</div>
</form>
</div>
<div id="preview">
<h2 align="center">Preview</h2>
<div id="viewCSV">
<form action="" method="get" name="csvDisplay">
<textarea id="plainOutput" style="width: 500px" rows="10" readonly="readonly" onClick="selectText('plainOutput')"></textarea>
<p><input type="button" value="Select Text" onClick="selectText('plainOutput')"/></p>
</form>
</div>
</div>
<div id="instruction" >
<p style="margin-left: 20px"><strong>Instructions:</strong></br>
<ol>
<li>Paste text into the Workspace.</li>
<li>Click the "Convert" button.</li>
<li>Cclick on the text or the Select button at the bottom to select
the text.</li>
<li>You <strong>must</strong> copy the text by either Right-clicking
and choose Copy or by pressing Control+C.</li>
<li>Paste the text into Excel as CSV.</li>
<li>Format table as necessary.</li>
<li>Select table and paste into product.</li>
</ol>
</div>
</div>
</body>
</html>
将"times"转换为Date()对象（拆分字符串，转换为数字，馈送构造函数）。
然后使用日期数组的sort()方法。使用自定义比较函数，您可以轻松对日期进行排序。看看链接文档中的数字比较功能： 它也适用于 Date 对象，因为它将被隐式转换为数字。
之后，您将能够为每个日期将数组拆分为子数组。
export const sortByDate = (array, direction) => {
if (!array.length) return []
if (direction.toLowerCase() === "asc") {
return array.sort(
(a, b) => new Date(a).getTime() - new Date(b).getTime()
)
}
if (direction.toLowerCase() === "desc") {
return array.sort(
(a, b) =>
new Date(String(b)).getTime() -
new Date(String(a)).getTime()
)
}
return array
}
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