I have a json with the below format:
let js = {
"a": 1,
"b": [
{
"h": "example",
"v": 12
},
{
"h": "example1",
"v": 23
}
]
}
I have a class that takes in this json from constructor turning it into an instance of this class:
class A{
constructor (json){
Object.assign(this, json)
}
}
This works well with:
a = new A(js)
console.log(f.a)
I have a second class which has the format of the inner list b:
class B {
construtor(json){
Object.assign(this, json)
}
}
How can I instantiate class B from the object passed to A so that f.b[0] and f.b[1] above would be of type B?
try this,
let js = {
"a": 1,
"b": [{
"h": "example",
"v": 12
},
{
"h": "example1",
"v": 23
}
]
}
class A {
constructor(json) {
// create a new b array with instances of class B.
json.b = json.b.map(json => new B(json))
Object.assign(this, json)
}
}
class B {
constructor(json) {
Object.assign(this, json)
}
}
const a = new A(js);
console.log({a});
console.log('is a.b[0] instance of class B?', a.b[0] instanceof B)