I have this object:
popup_data = {
club: {
type: 'club',
type_img: {
header: 'CLUB HEADER',
img: 'https://source.unsplash.com/random/800x600',
sub_header: 'CLUB SUB HEADER',
content: 'TEXT',
hotspot_position: [5, -1.5, 2.5]
},
hotspots_array: [
{ id: () => this.club.type + '-' + 'type_img',
position: () => this.club.type_img.hotspot_position,
},
]
},
How to get type
and type_img.hotspot_position
from these nested functions
just use the var name, popup_data
popup_data = {
club: {
type: 'club',
type_img: {
header: 'CLUB HEADER',
img: 'https://source.unsplash.com/random/800x600',
sub_header: 'CLUB SUB HEADER',
content: 'TEXT',
hotspot_position: [5, -1.5, 2.5]
},
hotspots_array: [
{ id: () => popup_data.club.type + '-' + 'type_img',
position: () => popup_data.club.type_img.hotspot_position,
},
]
},
What is this?
In JavaScript, thethis
keyword refers to an object.Which object depends on how
this
is being invoked (used or called).The
this
keyword refers to different objects depending on how it is used:In an object method,
this
refers to the object.
Alone,this
refers to the global object.
In a function,this
refers to the global object.
In a function, in strict mode,this
is undefined.
In an event,this
refers to the element that received the event.
Methods likecall()
,apply()
, andbind()
can referthis
to any object.