<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
</head>
<body>
<script>
var aaa = {}
aaa.q111 = '1111'
console.log(aaa);
const bbb = {}
bbb.q111 = '1111'
console.log(bbb);
function getQueryVariable(variable) {
var query = window.location.search.substring(1);
var vars = query.split("&");
for (var i = 0; i < vars.length; i++) {
var pair = vars[i].split("=");
if (pair[0] == variable) {
return pair[1];
}
}
return (false);
}
var obj = {
name: "abc",
age: 123,
card: ['visa', 'master'],
wife: {
name: 'bcd',
son: {
name: 'aaa'
}
}
}
console.log(obj)
var obj1 = obj;
obj1.fff = "2222"
console.log(obj1);
var obj1 = {
}
//深度拷贝
function deepClone(origin, target) {
var target = target || {},
toStr = Object.prototype.toString,
arrStr = "[object Array]";
for (var prop in origin) {
if (origin.hasOwnProperty(prop)) {
if (origin[prop] !== "null" && typeof(origin[prop]) == 'object') {
// if (toStr.call(origin[prop]) == arrStr) {
// target[prop] = [];
// } else {
// target[prop] = {};
// }
target[prop] = toStr.call(origin[prop]) == arrStr ? [] : {};
deepClone(origin[prop], target[prop]);
} else {
target[prop] = origin[prop];
}
}
}
return target;
}
deepClone(obj, obj1);
console.log(obj1)
</script>
</body>
</html>
1、URL解析：正则或字符串分割
2、值和引用：地址
3、拷贝：递归、取值赋值
4、Multipolygon、polygon
5、leaflet-geojson：图层顺序，拷贝数据附加