<script>
function Map() {
var struct = function(key, value) {
this.key = key;
this.value = value;
}
var put = function(key, value){
for (var i = 0; i < this.arr.length; i++) {
if ( this.arr[i].key === key ) {
this.arr[i].value = value;
return;
}
}
this.arr[this.arr.length] = new struct(key, value);
}
var get = function(key) {
for (var i = 0; i < this.arr.length; i++) {
if ( this.arr[i].key === key ) {
return this.arr[i].value;
}
}
return null;
}
var remove = function(key) {
var v;
for (var i = 0; i < this.arr.length; i++) {
v = this.arr.pop();
if ( v.key === key ) {
continue;
}
this.arr.unshift(v);
}
}
var size = function() {
return this.arr.length;
}
var isEmpty = function() {
return this.arr.length <= 0;
}
this.arr = new Array();
this.get = get;
this.put = put;
this.remove = remove;
this.size = size;
this.isEmpty = isEmpty;
}
</script>
<script>
var map = new Map();
map.put("re","redhacker");
map.put("do","douguoqiang");
map.put("gq","dougq");
alert("map的大小為：" + map.size())
alert("key為re的map中存儲的對象為：" + map.get("re"));
map.remove("re");
alert("移除key為re的對象后，獲取key為re的map中存儲的對象為：" + map.get("re"));
alert("map移除一個元素后的大小為：" + map.size());
alert("map是否是一個空map:" + map.isEmpty());
</script>
Trackback: http://tb.blog.csdn.net/TrackBack.aspx?PostId=1550098