I have a function binded to an object, how can I access to the object at the same scope with the function?
let f = function(){};
class A{}
f = f.bind(new A());
// console.log(f.bindedObject)
what about in a method?
class B{
constructor(func){
this.func = func;
}
log(){
// console.log(this.func.bindedObject)
}
}
class A{}
let b = new B(function(){}.bind(new A()));
b.log()
You could overwrite the bind method
(function() {
let bind = Function.prototype.bind;
Function.prototype.bind = function(newThis) {
let bf = bind.apply(this, arguments);
bf.newThis = newThis;
return bf;
};
})();
var f = function() {};
var nf = f.bind({'hello':1});
console.log('newThis', nf.newThis);