<!DOCTYPE html>
<html>
<head>
<style>
#target{
font-size:77px;
font-family: georgia;
border-bottom:1px solid black;
padding-bottom:10px;
}
p{
margin:5px;
}
</style>
</head>
<body>
<p id="target">Cording everybody!</p>
<p> data : <input type="text" id="datasource" value="JavaScript" /></p>
<p> start :<input type="text" id="start" value="5" /></p>
<p> end : <input type="text" id="end" value="5" /></p>
<p><input type="button" value="appendData(data)" onclick="callAppendData()" />
<input type="button" value="deleteData(start,end)" onclick="callDeleteData()" />
<input type="button" value="insertData(start,data)" onclick="callInsertData()" />
<input type="button" value="replaceData(start,end,data)" onclick="callReplaceData()" />
<input type="button" value="substringData(start,end)" onclick="callSubstringData()" /></p>
<script>
var target = document.getElementById('target').firstChild;
var data = document.getElementById('datasource');
var start = document.getElementById('start');
var end = document.getElementById('end');
function callAppendData(){
target.appendData(data.value);
}
function callDeleteData(){
target.deleteData(start.value, end.value);
}
function callInsertData(){
target.insertData(start.value, data.value);
}
function callReplaceData(){
target.replaceData(start.value, end.value, data.value);
}
function callSubstringData(){
alert(target.substringData(start.value, end.value));
}
</script>
</body>
</html>
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