js 数组深浅拷贝 indexOf处理一个数组在；另一个数组中的索引

<script>

var some = ['是','时','了','我','的','题','库','紫','赋','传','了','我'];

var text = ['我','是','题','库','了'];

var text1 = JSON.parse(JSON.stringify(text));

var some1 = JSON.parse(JSON.stringify(some)); //深拷贝

let arr = [];

some[1]='好'

console.log('some:',some);

console.log('some1:',some1);

console.log('text:',text);

console.log('text1:',text);

text1.toString();

some1.toString();

for(let i = 0;i < text.length; i++){

console.log(some1.indexOf(text[i]));

arr.push(some1.indexOf(text[i]));

}

console.log(arr);

</script>