Why does the same thing before change to true
let model = [
{code: 1, value:""}
{code: 2, value:"1"}
{code: 17, value:"2"}
{code: 11, value:"3"}
]
//
let model = items.map((n) =>
Object.assign({}, n, {
// model.valuevalue1. 11.
checked: model.value.includes(n.code)
}))
//
model = [
{code: 1, value:"" checked:true}
{code: 2, value:"1"checked:fales}
{code: 17, value:"2"checked:true}
{code: 11, value:"3"checked:true}
] String.prototype.includes ()
includes () method is used to determine whether a string is contained in another string and returns true or false as appropriate.
read the description clearly and choose the appropriate method. You need to judge the equality directly by using = or =
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