Sometimes, we want to convert a JavaScript plain object into model class instance.
In this article, we’ll look at how to convert a JavaScript plain object into model class instance.
How to convert a JavaScript plain object into model class instance?
To convert a JavaScript plain object into model class instance, we can use the Object.assign method.
For instance, we write:
class Model {
constructor(obj) {
Object.assign(this, obj)
}
print() {
console.log(this.a);
}
}
const obj = {
a: 'a',
b: 'b',
c: 'c'
}
const m = new Model(obj)
console.log(m)
m.print()
to call Object.assign with this and obj in the Model class constructor.
This will merge the contents of obj into this.
Next, we instantiate a Model instance with obj.
And then we call m.print to print the content of this.a, which is 'a'.
Conclusion
To convert a JavaScript plain object into model class instance, we can use the Object.assign method.
