发布于 2016-11-26 16:47:10 | 71 次阅读 | 评论: 0 | 来源: 网友投递

这里有新鲜出炉的Javascript教程,程序狗速度看过来!

JavaScript客户端脚本语言

Javascript 是一种由Netscape的LiveScript发展而来的原型化继承的基于对象的动态类型的区分大小写的客户端脚本语言,主要目的是为了解决服务器端语言,比如Perl,遗留的速度问题,为客户提供更流畅的浏览效果。


这篇文章主要介绍了JavaScript实现表格点击排序的方法,可实现点击顶部数据项标题实现对应数据列的排序效果,涉及javascript鼠标事件及数据排序的技巧,需要的朋友可以参考下

本文实例讲述了JavaScript实现表格点击排序的方法。分享给大家供大家参考。具体分析如下:

这里实现基于JS的表格点击排序效果,可以根据表格内的数据大小自动按顺序排列,股票网站常会见到这种功能。


<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>表格排序</title>
</head>
<STYLE type=text/css>TABLE {
 BORDER-RIGHT: #000000 2px solid; BORDER-TOP: #000000 2px solid;
 BORDER-LEFT: #000000 2px solid; BORDER-BOTTOM: #000000 2px solid;
 border-spacing: 0px; cell-spacing: 0px
}
TD {
 PADDING-RIGHT: 0.5em; PADDING-LEFT: 0.5em; FONT-SIZE: 10pt;
 PADDING-BOTTOM: 2px; PADDING-TOP: 2px; 
 FONT-FAMILY: Arial, Helvetica, sans-serif; WHITE-SPACE: nowrap
}
TH {
 PADDING-RIGHT: 0.5em; PADDING-LEFT: 0.5em; FONT-SIZE: 10pt;
 PADDING-BOTTOM: 2px; PADDING-TOP: 2px;
 FONT-FAMILY: Arial, Helvetica, sans-serif; WHITE-SPACE: nowrap
}
TD.numeric {
 TEXT-ALIGN: right
}
TH {
 BACKGROUND-COLOR: #c0c0c0
}
TH.mainHeader {
 COLOR: #ffffff; BACKGROUND-COLOR: #808080; TEXT-ALIGN: left
}
TH A {
 COLOR: #000080; TEXT-DECORATION: none
}
TH A:visited {
 COLOR: #000080
}
TH A:active {
 COLOR: #800000; TEXT-DECORATION: underline
}
TH A:hover {
 COLOR: #800000; TEXT-DECORATION: underline
}
TR.alternateRow {
 BACKGROUND-COLOR: #e0e0e0
}
TD.sortedColumn {
 BACKGROUND-COLOR: #f0f0f0
}
TH.sortedColumn {
 BACKGROUND-COLOR: #b0b0b0
}
TR.alternateRow TD.sortedColumn {
 BACKGROUND-COLOR: #d0d0d0
}
</STYLE>
<SCRIPT type=text/javascript>
function sortTable(id, col, rev) {
 var tblEl = document.getElementById(id);
 if (tblEl.reverseSort == null) {
  tblEl.reverseSort = new Array();
  tblEl.lastColumn = 1;
 }
 if (tblEl.reverseSort[col] == null)
  tblEl.reverseSort[col] = rev;
 if (col == tblEl.lastColumn)
  tblEl.reverseSort[col] = !tblEl.reverseSort[col];
 tblEl.lastColumn = col;
 var oldDsply = tblEl.style.display;
 tblEl.style.display = "none";
 var tmpEl;
 var i, j;
 var minVal, minIdx;
 var testVal;
 var cmp;
 for (i = 0; i < tblEl.rows.length - 1; i++) {
  minIdx = i;
  minVal = getTextValue(tblEl.rows[i].cells[col]);
  for (j = i + 1; j < tblEl.rows.length; j++) {
   testVal = getTextValue(tblEl.rows[j].cells[col]);
   cmp = compareValues(minVal, testVal);
   if (tblEl.reverseSort[col])
    cmp = -cmp;
   if (cmp == 0 && col != 1)
    cmp = compareValues(getTextValue(tblEl.rows[minIdx].cells[1]),
              getTextValue(tblEl.rows[j].cells[1]));
   if (cmp > 0) {
    minIdx = j;
    minVal = testVal;
   }
  }
  if (minIdx > i) {
   tmpEl = tblEl.removeChild(tblEl.rows[minIdx]);
   tblEl.insertBefore(tmpEl, tblEl.rows[i]);
  }
 }
 makePretty(tblEl, col);
 setRanks(tblEl, col, rev);
 tblEl.style.display = oldDsply;
 return false;
}
if (document.ELEMENT_NODE == null) {
 document.ELEMENT_NODE = 1;
 document.TEXT_NODE = 3;
}
function getTextValue(el) {
 var i;
 var s;
 s = "";
 for (i = 0; i < el.childNodes.length; i++)
  if (el.childNodes[i].nodeType == document.TEXT_NODE)
   s += el.childNodes[i].nodeValue;
  else if (el.childNodes[i].nodeType == document.ELEMENT_NODE && 
       el.childNodes[i].tagName == "BR")
   s += " ";
  else
   // Use recursion to get text within sub-elements.
   s += getTextValue(el.childNodes[i]);
 return normalizeString(s);
}
function compareValues(v1, v2) {
 var f1, f2;
 f1 = parseFloat(v1);
 f2 = parseFloat(v2);
 if (!isNaN(f1) && !isNaN(f2)) {
  v1 = f1;
  v2 = f2;
 }
 // Compare the two values.
 if (v1 == v2)
  return 0;
 if (v1 > v2)
  return 1
 return -1;
}
var whtSpEnds = new RegExp("^\\s*|\\s*$", "g");
var whtSpMult = new RegExp("\\s\\s+", "g");
function normalizeString(s) {
 s = s.replace(whtSpMult, " "); // Collapse any multiple whites space.
 s = s.replace(whtSpEnds, "");  // Remove leading or trailing white space.
 return s;
}
var rowClsNm = "alternateRow";
var colClsNm = "sortedColumn";
var rowTest = new RegExp(rowClsNm, "gi");
var colTest = new RegExp(colClsNm, "gi");
function makePretty(tblEl, col) {
 var i, j;
 var rowEl, cellEl;
 for (i = 0; i < tblEl.rows.length; i++) {
  rowEl = tblEl.rows[i];
  rowEl.className = rowEl.className.replace(rowTest, "");
  if (i % 2 != 0)
   rowEl.className += " " + rowClsNm;
  rowEl.className = normalizeString(rowEl.className);
  for (j = 2; j < tblEl.rows[i].cells.length; j++) {
   cellEl = rowEl.cells[j];
   cellEl.className = cellEl.className.replace(colTest, "");
   if (j == col)
    cellEl.className += " " + colClsNm;
   cellEl.className = normalizeString(cellEl.className);
  }
 }
 var el = tblEl.parentNode.tHead;
 rowEl = el.rows[el.rows.length - 1];
 for (i = 2; i < rowEl.cells.length; i++) {
  cellEl = rowEl.cells[i];
  cellEl.className = cellEl.className.replace(colTest, "");
  if (i == col)
   cellEl.className += " " + colClsNm;
   cellEl.className = normalizeString(cellEl.className);
 }
}
function setRanks(tblEl, col, rev) {
 var i  = 0;
 var incr = 1;
 if (tblEl.reverseSort[col])
  rev = !rev;
 if (rev) {
  incr = -1;
  i = tblEl.rows.length - 1;
 }
 var count  = 1;
 var rank  = count;
 var curVal;
 var lastVal = null;
 while (col > 1 && i >= 0 && i < tblEl.rows.length) {
  curVal = getTextValue(tblEl.rows[i].cells[col]);
  if (lastVal != null && compareValues(curVal, lastVal) != 0)
    rank = count;
  tblEl.rows[i].rank = rank;
  lastVal = curVal;
  count++;
  i += incr;
 }
 var rowEl, cellEl;
 var lastRank = 0;
 for (i = 0; i < tblEl.rows.length; i++) {
  rowEl = tblEl.rows[i];
  cellEl = rowEl.cells[0];
  while (cellEl.lastChild != null)
   cellEl.removeChild(cellEl.lastChild);
  if (col > 1 && rowEl.rank != lastRank) {
   cellEl.appendChild(document.createTextNode(rowEl.rank));
   lastRank = rowEl.rank;
  }
 }
}
</SCRIPT>
</HEAD>
<BODY>
<!-- Offensive statistics table. -->
<TABLE cellSpacing=0 cellPadding=0 border=0>
 <THEAD>
 <TR>
  <TH class=mainHeader colSpan=11>NFL 2001 Offensive Stats</TH></TR>
 <TR>
  <TH style="TEXT-ALIGN: left">Rank</TH>
  <TH style="TEXT-ALIGN: left"><A title="Team Name" 
   onclick="this.blur(); return sortTable('offTblBdy', 1, false);" 
   href="#">Team</A></TH>
  <TH><SPAN title="Games Played">Gms</SPAN></TH>
  <TH><A title="Total Yards" 
   onclick="this.blur(); return sortTable('offTblBdy', 3, true);" 
   href="#">Yds</A></TH>
  <TH><A title="Yards Per Game" 
   onclick="this.blur(); return sortTable('offTblBdy', 4, true);" 
   href="#">Yds/G</A></TH>
  <TH><A title="Total Rushing Yards" 
   onclick="this.blur(); return sortTable('offTblBdy', 5, true);" 
   href="#">RuYds</A></TH>
  <TH><A title="Rushing Yards Per Game" 
   onclick="this.blur(); return sortTable('offTblBdy', 6, true);" 
   href="#">RuYds/G</A></TH>
  <TH><A title="Total Passing Yards" 
   onclick="this.blur(); return sortTable('offTblBdy', 7, true);" 
   href="#">PaYds</A></TH>
  <TH><A title="Passing Yards Per Game" 
   onclick="this.blur(); return sortTable('offTblBdy', 8, true);" 
   href="#">PaYds/G</A></TH>
  <TH><A title="Total Points Scored" 
   onclick="this.blur(); return sortTable('offTblBdy', 9, true);" 
   href="#">Pts</A></TH>
  <TH><A title="Points Per Game" 
   onclick="this.blur(); return sortTable('offTblBdy', 10, true);" 
   href="#">Pts/G</A></TH></TR></THEAD>
 <TBODY id=offTblBdy>
 <TR>
  <TD class=numeric></TD>
  <TD>Arizona</TD>
  <TD class=numeric>16</TD>
  <TD class=numeric>4898</TD>
  <TD class=numeric>306.1</TD>
  <TD class=numeric>1449</TD>
  <TD class=numeric>90.6</TD>
  <TD class=numeric>3449</TD>
  <TD class=numeric>215.6</TD>
  <TD class=numeric>295</TD>
  <TD class=numeric>18.4</TD></TR>
 <TR class=alternateRow>
  <TD class=numeric></TD>
  <TD>Atlanta</TD>
  <TD class=numeric>16</TD>
  <TD class=numeric>5070</TD>
  <TD class=numeric>316.9</TD>
  <TD class=numeric>1773</TD>
  <TD class=numeric>110.8</TD>
  <TD class=numeric>3297</TD>

  <TD class=numeric>206.1</TD>
  <TD class=numeric>291</TD>
  <TD class=numeric>18.2</TD></TR>
<TR>
<TD class=numeric></TD>
  <TD>Detroit</TD>
  <TD class=numeric>16</TD>
  <TD class=numeric>4994</TD>
  <TD class=numeric>312.1</TD>
  <TD class=numeric>1398</TD>
  <TD class=numeric>87.4</TD>
  <TD class=numeric>3596</TD>
  <TD class=numeric>224.8</TD>
  <TD class=numeric>270</TD>
  <TD class=numeric>16.9</TD></TR>
 <TR class=alternateRow>
  <TD class=numeric></TD>
  <TD>Jacksonville</TD>
  <TD class=numeric>16</TD>
  <TD class=numeric>4840</TD>
  <TD class=numeric>302.5</TD>
  <TD class=numeric>1600</TD>
  <TD class=numeric>100.0</TD>
  <TD class=numeric>3240</TD>
  <TD class=numeric>202.5</TD>
  <TD class=numeric>294</TD>
  <TD class=numeric>18.4</TD></TR>
 <TR>
  <TD class=numeric></TD>
  <TD>Kansas City</TD>
  <TD class=numeric>16</TD>
  <TD class=numeric>5673</TD>
  <TD class=numeric>354.6</TD>
  <TD class=numeric>2008</TD>
  <TD class=numeric>125.5</TD>
  <TD class=numeric>3665</TD>
  <TD class=numeric>229.1</TD>
  <TD class=numeric>320</TD>
  <TD class=numeric>20.0</TD></TR>
 <TR class=alternateRow>
  <TD class=numeric></TD>
  <TD>Miami</TD>
  <TD class=numeric>16</TD>
  <TD class=numeric>4821</TD>
  <TD class=numeric>301.3</TD>
  <TD class=numeric>1664</TD>
  <TD class=numeric>104.0</TD>
  <TD class=numeric>3157</TD>
  <TD class=numeric>197.3</TD>
  <TD class=numeric>344</TD>
  <TD class=numeric>21.5</TD></TR>
 <TR>
  <TD class=numeric></TD>
  <TD>Minnesota</TD>
  <TD class=numeric>16</TD>
  <TD class=numeric>5006</TD>
  <TD class=numeric>333.7</TD>
  <TD class=numeric>1523</TD>
  <TD class=numeric>101.5</TD>
  <TD class=numeric>3483</TD>
  <TD class=numeric>232.2</TD>
  <TD class=numeric>287</TD>
  <TD class=numeric>19.1</TD></TR>
 <TR class=alternateRow>
  <TD class=numeric></TD>
  <TD>New England</TD>
  <TD class=numeric>16</TD>
  <TD class=numeric>4882</TD>
  <TD class=numeric>305.1</TD>
  <TD class=numeric>1793</TD>
  <TD class=numeric>112.1</TD>
  <TD class=numeric>3089</TD>
  <TD class=numeric>193.1</TD>
  <TD class=numeric>371</TD>
  <TD class=numeric>23.2</TD></TR>
 <TR>
  <TD class=numeric></TD>
  <TD>New Orleans</TD>
  <TD class=numeric>16</TD>
  <TD class=numeric>5226</TD>
  <TD class=numeric>326.6</TD>
  <TD class=numeric>1712</TD>
  <TD class=numeric>107.0</TD>
  <TD class=numeric>3514</TD>
  <TD class=numeric>219.6</TD>
  <TD class=numeric>333</TD>
  <TD class=numeric>20.8</TD></TR>
 <TR class=alternateRow>
  <TD class=numeric></TD>
  <TD>New York Giants</TD>
  <TD class=numeric>16</TD>
  <TD class=numeric>5335</TD>
  <TD class=numeric>333.4</TD>
  <TD class=numeric>1777</TD>
  <TD class=numeric>111.1</TD>
  <TD class=numeric>3558</TD>
  <TD class=numeric>222.4</TD>
  <TD class=numeric>294</TD>
  <TD class=numeric>18.4</TD></TR>
</TBODY></TABLE>
</BODY>
</HTML>

希望本文所述对大家的javascript程序设计有所帮助。



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