JS创建数组的方法
var myArray = new Array();var min_row = Math.min.apply(Math,myArray);
myArray.shift(); //去掉第一个数
一、创建数组
<script language="JavaScript" type="text/javascript"><!-- var myArray = new Array(7);myArray = "Sunday";myArray = "Monday";myArray = "Tuesday";myArray = "Wednesday";myArray = "Thursday";myArray = "Friday";myArray = "Saturday";document.write("<h3>数组中的元素有："+myArray); //--></script>
二、创建数组
<script language="JavaScript" type="text/javascript"><!-- var myArray = new Array("星期日","星期一", "星期二","星期三", "星期四","星期五", "星期六");document.write("<h3>数组中的元素有："+myArray); //--></script>
三、创建数组对象
<script language="JavaScript" type="text/javascript"><!-- var sString = new String("sunday"); var myArray = new Array("星期日",1,false,sString);document.write("<h3>数组中的元素有："+myArray); //--></script>
四、数组的特殊函数用法(slice和join)
(1--slice用法)<script language="JavaScript" type="text/javascript"><!-- var myArray = new Array(7);myArray = "Sunday";myArray = "Monday";myArray = "Tuesday";myArray = "Wednesday";myArray = "Thursday";myArray = "Friday";myArray = "Saturday";var newArray1 = myArray.slice(1,4);document.write("<h3>新创建的第一个数组为："+newArray1);var newArray2 = myArray.slice(5);document.write("<h3>新创建的第二个数组为："+newArray2);document.write("<h3>原数组为："+myArray); //--></script>结果是：新创建的第一个数组为：Monday,Tuesday,Wednesday新创建的第二个数组为：Friday,Saturday原数组为：Sunday,Monday,Tuesday,Wednesday,Thursday,Friday,Saturday(2--join用法)<script language="JavaScript" type="text/javascript"><!-- var myArray = new Array(7);myArray = "Sunday";myArray = "Monday";myArray = "Tuesday";myArray = "Wednesday";myArray = "Thursday";myArray = "Friday";myArray = "Saturday";var sString = myArray.join("^-^");document.write("<h3>数组中的数组元素内容为："+sString); //--></script>结果为：数组中的数组元素内容为：Sunday^-^Monday^-^Tuesday^-^Wednesday^-^Thursday^-^Friday^-^Saturday
五、数组排序：
(1)默认的排序：<script language="JavaScript" type="text/javascript"><!-- var myArray = new Array(7);myArray = "Sunday";myArray = "Monday";myArray = "Tuesday";myArray = "Wednesday";myArray = "Thursday";myArray = "Friday";myArray = "Saturday";document.write("<h3>原数组为："+myArray);var newArray = myArray.sort();document.write("<h3>新数组为："+newArray); //--></script>结果：原数组为：Sunday,Monday,Tuesday,Wednesday,Thursday,Friday,Saturday新数组为：Friday,Monday,Saturday,Sunday,Thursday,Tuesday,Wednesday(2)指定比较规则的排序<html><head><title>对数组元素的操作</title><script language="JavaScript" type="text/javascript"><!-- function myFunction(element1, element2){ if (element1 < element2){ return -1; }else if(element1==element2){ return 0; }else { return 1; }} //--></script></head><body><h1>对数组元素的操作</h1><script language="JavaScript" type="text/javascript"><!-- var myArray = new Array("red",4,"blue",13,"green",5);document.write("<h3>原数组为："+myArray);var newArray = myArray.sort(myFunction);document.write("<h3>新数组为："+newArray); //--></script></body></html>结果：原数组为：red,4,blue,13,green,5新数组为：blue,green,red,4,5,13
六：倒序数组
var newArray = myArray.reverse();document.write("<h3>使用reverse方法的倒序数组为："+newArray);结果为：原数组为：Sunday,Monday,Tuesday,Wednesday,Thursday,Friday,Saturday使用for循环语句的倒序数组为：Saturday Friday Thursday Wednesday Tuesday Monday Sunday 使用reverse方法的倒序数组为：Saturday,Friday,Thursday,Wednesday,Tuesday,Monday,Sunday
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