The following code snippet demonstrates the declaration of a variable constObj within the Test class. The object constObj is then assigned to this in the constructor.
Why must we declare the variable again when it is already being assigned to this in the constructor?
When using the webstorm IDE, an error stating
doesn't have the property constObjthis.constObj is not declared. However, the code works without any issues.
Is declaring the variable necessary even though it is being assigned to this?
const constObj = {
a: function() {
console.log("sivakumar");
}
};
class Test {
constObj: any; // Is this line mandatory? I mean declaring it???
constructor() {
Object.assign(this, {
constObj
});
}
callMethod() {
this.constObj.a();
}
}
new Test().callMethod();Please explain what would happen if we do not declare the variable.