如何以角度在数组对象内附加/推送新对象

Question

how to append/push a new object in angular.

here's the data:

 data = [
     { title: 'Book1' },
     { title: 'Book2' },
     { title: 'Book3' },
     { title: 'Book4' }
    ]

What I want to do is to add inside the object like access. expected output:

data = [
         { title: 'Book1', author: false },
         { title: 'Book2', author: false },
         { title: 'Book3', author: false },
         { title: 'Book4', author: false }
        ]

Answer 1

You can add the property using a map and object destructor in ES6

data = [
     { title: 'Book1' },
     { title: 'Book2' },
     { title: 'Book3' },
     { title: 'Book4' }
    ].map(d => ({ ...d, author: false }));

 let data = [ { title: 'Book1' }, { title: 'Book2' }, { title: 'Book3' }, { title: 'Book4' } ].map(d => ({ ...d, author: false })); console.log(data)

Answer 2

You Can use Array.prototype.map()

Example :

 data = [ { title: 'Book1' }, { title: 'Book2' }, { title: 'Book3' }, { title: 'Book4' } ] data.map(item => { item.author = false }) console.log("Data",data)