let source = {name: '从前',};
let obj = source;
obj.name = '现在';
console.log('obj:',obj,'source:',source);
let array = [1, 2, 3, 4];
function copy (array) {
let newArray = []
for(let item of array) {
newArray.push(item);
}
return newArray;
}
let copyArray = copy(array);
copyArray[0] = 100;
console.log(array);
console.log(copyArray);
5题 | 被引用0次