<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
</body>
<script>
let a = {
a:1,
b:[3,4],
c:{
a:1,
b:[3,4]
}
}
let b = [3,4];
let c = 'hello world'
function deepClone(obj){
let result = null;
if(typeof(obj) === 'object'){
if(obj instanceof Array){
result =[]
}else {
result = {}
}
for(let index in obj) {
if(typeof(obj[index]) === 'object' && obj[index] !== null) {
obj[index] instanceof Array? result[index] = []:{}
result[index] = deepClone(obj[index]);
}else{
result[index] = obj[index];
}
}
}else{
result = obj;
}
return result;
}
let res = deepClone(a);
let res2 = deepClone(b);
res.c.b[1] = 0;
res2[1] = 0;
console.log('object', a,res,b,res2)
</script>
</html>
以遞歸算法實現對象、數組等深拷貝
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