Creating a Custom toString() Method : String « Language Basics « JavaScript DHTML






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Creating a Custom toString() Method

/* JavaScript Bible, Fourth Edition by Danny Goodman John Wiley & Sons CopyRight 2001 */ <HTML> <HEAD> <TITLE>Custom toString()</TITLE> <SCRIPT LANGUAGE="JavaScript"> function customToString() { var dataArray = new Array() var count = 0 for (var i in this) { dataArray[count++] = this[i] if (count > 2) { break } } return dataArray.join(",") } var book = {title:"The Aeneid", author:"Virgil", pageCount:543} book.toString = customToString </SCRIPT> </HEAD> <BODY> <B>A user-defined toString() result:</B> <HR> <SCRIPT LANGUAGE="JavaScript"> document.write(book.toString()) </SCRIPT> </BODY> </HTML>








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