Cannot assign to read only property 'name' of object '[object Object]'

Question

The following code will throw an error only for the name property. It could be fixed by specifying name property as writable in Object.create

Answer 1

I ran into this issue in Angular, while setting a local variable from ActivatedRoute's queryParams, and attempting to conditionally either override or merge... Duplicating beforehand did the trick:

updateQp(qp = {}, force = false) { 
    let qpLoc = Object.assign({}, this.queryParamsLocal)
    this.queryParamsLocal = force ? qp : Object.assign(qpLoc, qp)
}