Version

3.2.0-beta.1

Reproduction link

[https://sfc.vuejs.org/#eyJBcHAudnVlIjoiPHRlbXBsYXRlPlxuICA8ZGl2IHYtZm9yPVwiKHJvdyx5KSBpbiBsaXN0XCI XG4gICAgPGRpdj5cbiAgICAgIC0tLSByb3cge3t5fX1cbiAgICA8L2Rpdj5cbiAgICA8ZGl2IHYtZm9yPVwiKG51bSx4KSBpbiByb3dcIiBAY2xpY2s9XCJoYW5kbGVDbGljayh4LHkpXCI XG4gICAgICB7e251bX19XG4gICAgPC9kaXY XG4gIDwvZGl2PlxuICBjbGljayAnMCcgYWJvdmVcbjwvdGVtcGxhdGU XG5cbjxzY3JpcHQgc2V0dXA XG4gaW1wb3J0IHtyZWZ9IGZyb20gJ3Z1ZSdcbiAgY29uc3QgbGlzdCA9IHJlZihuZXcgQXJyYXkoNCkuZmlsbChuZXcgQXJyYXkoNCkuZmlsbCgwKSkpXG4gIFxuICBjb25zdCBoYW5kbGVDbGljayA9ICh4LHkpPT57XG4gICAgbGlzdC52YWx1ZVt5XVt4XSA9IDFcbiAgfVxuICBcbiA8L3NjcmlwdD4ifQ==](https://sfc.vuejs.org/#eyJBcHAudnVlIjoiPHRlbXBsYXRlPlxuICA8ZGl2IHYtZm9yPVwiKHJvdyx5KSBpbiBsaXN0XCI XG4gICAgPGRpdj5cbiAgICAgIC0tLSByb3cge3t5fX1cbiAgICA8L2Rpdj5cbiAgICA8ZGl2IHYtZm9yPVwiKG51bSx4KSBpbiByb3dcIiBAY2xpY2s9XCJoYW5kbGVDbGljayh4LHkpXCI XG4gICAgICB7e251bX19XG4gICAgPC9kaXY XG4gIDwvZGl2PlxuICBjbGljayAnMCcgYWJvdmVcbjwvdGVtcGxhdGU XG5cbjxzY3JpcHQgc2V0dXA XG4gaW1wb3J0IHtyZWZ9IGZyb20gJ3Z1ZSdcbiAgY29uc3QgbGlzdCA9IHJlZihuZXcgQXJyYXkoNCkuZmlsbChuZXcgQXJyYXkoNCkuZmlsbCgwKSkpXG4gIFxuICBjb25zdCBoYW5kbGVDbGljayA9ICh4LHkpPT57XG4gICAgbGlzdC52YWx1ZVt5XVt4XSA9IDFcbiAgfVxuICBcbiA8L3NjcmlwdD4ifQ==)

Steps to reproduce

click 0

What is expected?

the clicked 0 changes to 1

What is actually happening?

0 with the same index in all rows change to 1

your reproduction link is broken.

your reproduction link is broken.

https://sfc.vuejs.org/#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

try this

I think it's not a bug. see https://sfc.vuejs.org/#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

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/fill#description

If the first parameter is an object, each slot in the array will reference that object.

// Objects by reference.
var arr = Array(3).fill({}) // [{}, {}, {}];
// 需要注意如果fill的参数为引用类型，会导致都执行都一个引用类型
// 如 arr[0] === arr[1] 为true
arr[0].hi = "hi"; // [{ hi: "hi" }, { hi: "hi" }, { hi: "hi" }]

I think it's not a bug. see https://sfc.vuejs.org/#eyJBcHAudnVlIjoiPHRlbXBsYXRlPlxuICA8ZGl2IHYtZm9yPVwiKHJvdyx5KSBpbiBsaXN0XCIgOmtleT1cInlcIj5cbiAgICA8ZGl2PlxuICAgICAgLS0tIHJvdyB7e3l9fVxuICAgIDwvZGl2PlxuICAgIDxkaXYgdi1mb3I9XCIobnVtLHgpIGluIHJvd1wiIEBjbGljaz1cImhhbmRsZUNsaWNrKHgseSlcIj5cbiAgICAgIHt7bnVtfX1cbiAgICA8L2Rpdj5cbiAgPC9kaXY+XG4gIGNsaWNrICcwJyBhYm92ZVxuPC90ZW1wbGF0ZT5cblxuPHNjcmlwdCBzZXR1cD5cbiBpbXBvcnQge3JlZn0gZnJvbSAndnVlJ1xuICBcbiAgY29uc3QgbGlzdCA9IHJlZihbWzAsMCwwLDBdLFswLDAsMCwwXSxbMCwwLDAsMF0sWzAsMCwwLDBdXSlcbiAgXG4gIGNvbnN0IGhhbmRsZUNsaWNrID0gKHgseSk9PntcbiAgICBsaXN0LnZhbHVlW3ldW3hdID0gMVxuICB9XG4gIFxuIDwvc2NyaXB0PiJ9

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/fill#description

If the first parameter is an object, each slot in the array will reference that object.

you are right, thx