结果
一、往数组里添加数据的时候去重
<script type="text/javascript">
var arr=new Array();
document.write("向数组内添加数字2342467869");
qC(arr,2);qC(arr,3);qC(arr,4);qC(arr,2);qC(arr,4);
qC(arr,6);qC(arr,7);qC(arr,8);qC(arr,6);qC(arr,9);
document.write("<br>");
document.write("结果数组:");
for(var i=0;i<arr.length;i++){
document.write(arr[i]+" ");
}
//去除重复方法
function qC(arr,j){
for(var i=0;i<=arr.length;i++){
if(arr.length==0){
arr.push(j);
return arr;
}
if(arr[i]==j){
return arr;
}
if(i==(arr.length-1)){
arr.push(j);
return arr;
}
}
return arr;
}
</script>
二、快速排序
<script type="text/javascript">
var arr=new Array();
arr=[66,13,51,76,81,26,57,69,23];
document.write("原数组:");
for(var i=0;i<arr.length;i++){
document.write(arr[i]+" ");
}
document.write("<br>");
document.write("排序后数组：");
quickSort(arr,0,arr.length-1);
for(var i=0;i<arr.length;i++){
document.write(arr[i]+" ");
}
//快速排序方法
function quickSort(arr,_left,_right){
var left=_left;
var right=_right;
var temp=0;
if(left<right){
temp=arr[left];
while(left!=right){
while(right>left&&arr[right]>=temp){
right--;
}
arr[left]=arr[right];
while(right>left&&arr[left]<=temp){
left++;
}
arr[right]=arr[left];
}
arr[right]=temp;
quickSort(arr,_left,right-1);
quickSort(arr, right+1,_right);
}
}
</script>
三、将数组内字符串中zcv三个字母转换成大写
<script type="text/javascript">
var arr=new Array();
arr=["abc","zcv","hzc","wahzgz","whfhfz"];
document.write("原字符串:");
for(var i=0;i<arr.length;i++){
document.write(arr[i]+" ");
}
arr=change(arr);
document.write("<br>");
document.write("改变后字符串:");
for(var i=0;i<arr.length;i++){
document.write(arr[i]+" ");
}
//将数组内字母zcv转变为大写
function change(arr){
for(var i=0;i<arr.length;i++){
if(typeof arr[i]=='string'){
arr1=arr[i].split('');
for(var j=0;j<arr1.length;j++){
if(arr1[j]=="z"){
arr1[j]=arr1[j].toUpperCase();
}
if(arr1[j]=="c"){
arr1[j]=arr1[j].toUpperCase();
}
if(arr1[j]=="v"){
arr1[j]=arr1[j].toUpperCase();
}
}
arr[i]=arr1.join('');
}
}
return arr;
}
转载于:https://my.oschina.net/u/3715432/blog/1795343