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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>數組和字串的提示</title> <meta name="Generator" content="EditPlus"> <meta name="Author" content=""> <meta name="Keywords" content=""> <meta name="Description" content=""> <script type="text/javascript">//聲明一個數組var arr=new Array();for(var i=0;i<10;i++){arr.push(i);}//擷取數組的最大值document.writeln(Math.max.apply(null,arr)+"<br />");//用“，”串連數組中的元素，並輸出document.write(arr.join(",")+"<br />");//將數組中的元素反轉arr.reverse();//輸出反轉後的數組document.write(arr.join("-")+"<br />");<!--簡單的計算-->document.write(eval(prompt("請輸入計算運算式：",""))+"<br />");<!--JavaScript也可以向函數傳遞比在函數定義時參數數目要多的參數,返回總和-->function sum(){var sum1=0;var num=sum.arguments.length;for(var i=0;i<num;i++){sum1+=sum.arguments[i];}return sum1;}document.write("結果為："+sum(50,80,30)+"<br />");<!--返回字串的一種簡單編碼，將非字母數位符號轉換為%加其unicode碼的十六進位表示-->function str(newString){return escape(newString);}document.write(str("Hello World")+"<br />");<!--將已編碼的字串還原為純字串-->function str1(newString){return unescape(newString);}document.write(str1("Hello%20World")+"<br />");//將字串轉換為小寫document.write((prompt("請輸入字串：","")).toLowerCase()+"<br />");//將字串轉換為大寫document.write((prompt("請輸入字串：","")).toUpperCase()+"<br />"); //串連兩個或多個字串document.write((prompt("請輸入字串1：","")).concat(prompt("請輸入字串2：",""))+"<br />");//閃動的字串document.write((prompt("請輸入字串：","")).blink()+"<br />");//返回字串中指定位置的字元var str="Hello World";document.write(str.charAt(6)); </script> </head> <body> </body></html>
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