StringBuffer based on array : StringBuffer « String « JavaScript Tutorial






  1. JavaScript Tutorial
  2. String
  3. StringBuffer
<html>
<head>
<title>Example</title>
</head>
<body>
<script type="text/javascript">
function StringBuffer() {
    this.__strings__ = new Array;
}

StringBuffer.prototype.append = function (str) {
    this.__strings__.push(str);
};

StringBuffer.prototype.toString = function () {
    return this.__strings__.join("");
};

var buffer = new StringBuffer();
var d1 = new Date();

for (var i=0; i < 10000; i++) {
    buffer.append("text");
}
var result = buffer.toString();

var d2 = new Date();

document.write("Concatenation with StringBuffer: " + (d2.getTime() - d1.getTime()) + " milliseconds");

</script>

</body>
</html>








6.39.StringBuffer
6.39.1.StringBuffer based on array