I have something like
var foo = function(arg){
var something = {
myPropVal: "the code",
myMethodProp: function(bla) {
// do stuff with mypropval here
alert(this) // => DOMWindow
}
}
}
is this possible? can i access the contents of myPropVal from within myMethodProp given the
sure you can
var foo = function(arg){
var something = {
myPropVal: "the code",
myMethodProp: function(bla) {
// do stuff with mypropval here
alert(this) // => DOMWindow
alert(this.myPropVal);
}
}
alert(something.myMethodProp());
}
foo();
this is not the DOMWindow.
this is depends on the context of how the function was invoked. So you might be safer using something explicitly.Yes, you can, below is an example.
obj = {
offset: 0,
IncreaseOffset: function (num) {
this.offset += num
},
/* Do not use the arrow function. Not working!
IncreaseOffset2: (num) => {
this.offset += num
}
*/
}
obj.IncreaseOffset(3)
console.log(obj.offset) // 3
In the context of an anonymous function used as property in an object, this refers to the object and can be used to access other properties.
const robin = {
firstName: 'Robin',
lastName: 'Wieruch',
getFullName: function () {
return this.firstName + ' ' + this.lastName;
},
};
console.log(robin.getFullName());
// "Robin Wieruch"
You might have to reference it as something.myPropVal.
