チュートリアルに従い、コードを変更して、IBM Cognos（BIソフトウェア）でJavaScriptタグクラウドを機能させました。タグクラウドはFireFoxでは正常に機能しますが、InternetExplorerでは次のエラーが発生します。
「メッセージ：「1」がnullであるか、オブジェクトではありません」
これが存在するコード行は225で、これは次のとおりです。
var B = b[1].toLowerCase();
私はこれまでに見たさまざまな解決策を試しましたが、これを正しく機能させることができませんでした。残りのコードは次のとおりです。
<script>
// JavaScript Document
// ====================================
// params that might need changin.
// DON'T forget to include a drill url in the href section below (see ###) if you want this report to be drillable
var delimit = "|";
var subdelimit = "[]"; // change this as needed (ex: Smith, Michael[]$500,000.00|)
var labelColumnNumber = 0; // first column is 0
var valueColumnNumber = 1;
var columnCount = 2; // how many columns are there in the list?
// ====================================
/*
function formatCurrency(num) {
num = num.toString().replace(/\$|\,/g,'');
if(isNaN(num))
num = "0";
sign = (num == (num = Math.abs(num)));
num = Math.floor(num*100+0.50000000001);
cents = num%100;
num = Math.floor(num/100).toString();
if(cents<10)
cents = "0" + cents;
for (var i = 0; i < Math.floor((num.length-(1+i))/3); i++)
num = num.substring(0,num.length-(4*i+3))+','+ num.substring(num.length-(4*i+3));
return (((sign)?'':'-') + '$' + num + '.' + cents);
}
*/
function formatCurrency(num) {
num = num.toString().replace(/\$|\,/g,'');
if(isNaN(num))
num = "0";
for (var i = 0; i < Math.floor((num.length-(1+i))/3); i++)
num = num.substring(0,num.length-(4*i+3))+','+ num.substring(num.length-(4*i+3));
return ( num );
}
function filterNum(str) {
re = /\$|,|@|#|~|`|\%|\*|\^|\&|\(|\)|\+|\=|\[|\-|\_|\]|\[|\}|\{|\;|\:|\'|\"|\<|\>|\?|\||\\|\!|\$|/g;
// remove special characters like "$" and "," etc...
return str.replace(re, "");
}
table = document.getElementById("dg");
if ( table.style.visibility != 'hidden'){ //only for visible
/*alert('Visible');*/
tags = document.getElementById("dg").getElementsByTagName("SPAN");
txt = "";
var newText = "a";
for (var i=columnCount; i<tags.length; i++) {
/*
valu = filterNum(tags[i+valueColumnNumber].innerHTML);
txt += valu;
txt += subdelimit+tags[i+labelColumnNumber].innerHTML+delimit;
i = i+columnCount;
*/
if(i%2!=0){
var newValue = filterNum(tags[i].innerHTML);
}else var newName =tags[i].innerHTML;
if((i>2) & (i%2!=0)){
newText = newText+newValue+subdelimit+newName+delimit;
if(typeof newText != 'undefined'){
txt = newText;
txt = txt.substr(9);
/* alert(txt);*/
}
}
}
}/*else alert ('Hidden');*/
function getFontSize(min,max,val) {
return Math.round((150.0*(1.0+(1.5*val-max/2)/max)));
}
function generateCloud(txt) {
//var txt = "48.1[]Google|28.1[]Yahoo!|10.5[]Live/MSN|4.9[]Ask|5[]AOL";
var logarithmic = false;
var lines = txt.split(delimit);
var min = 10000000000;
var max = 0;
for(var i=0;i<lines.length;i++) {
var line = lines[i];
var data = line.split(subdelimit);
if(data.length != 2) {
lines.splice(i,1);
continue;
}
data[0] = parseFloat(data[0]);
lines[i] = data;
if(data[0] > max)
max = data[0];
if(data[0] < min)
min = data[0];
}lines.sort(function (a,b) {
var A = a[1].toLowerCase();
var B = b[1].toLowerCase();
return A>B ? 1 : (A<B ? -1 : 0);
});
var html = "<style type='text/css'>#jscloud a:hover { text-decoration: underline; }</style> <div id='jscloud'>";
if(logarithmic) {
max = Math.log(max);
min = Math.log(min);
}
for(var i=0;i<lines.length;i++) {
var val = lines[i][0];
if(logarithmic) val = Math.log(val);
var fsize = getFontSize(min,max,val);
dollar = formatCurrency(lines[i][0]);
html += " <a href='###Some drillthrough url which includes the param "+lines[i][1]+"' style='font-size:"+fsize+"%;' title='"+dollar+"'>"+lines[i][1]+"</a> ";
}
html += "</div>";
var cloud = document.getElementById("cloud");
cloud.innerHTML = html;
var cloudhtml = document.getElementById("cloudhtml");
cloudhtml.value = html;
}
function setClass(layer,cls) {
layer.setAttribute("class",cls);
layer.setAttribute("className",cls);
}
function show(display) {
var cloud = document.getElementById("cloud");
var cloudhtml = document.getElementById("cloudhtml");if(display == "cloud") {
setClass(cloud,"visible");
setClass(cloudhtml,"hidden");
}
else if(display == "html") {
setClass(cloud,"hidden");
setClass(cloudhtml,"visible");
}
}
generateCloud(txt);
</script>
ヘルプや説明は大歓迎です