Expected property shorthand
111 dob: dob,
112 gender: gender,
113 age: age,
114 user_type: user_type,115 });
116 }
117Expected property shorthand
110 email: email,
111 dob: dob,
112 gender: gender,
113 age: age,114 user_type: user_type,
115 });
116 }Expected property shorthand
109 surname: surname,
110 email: email,
111 dob: dob,
112 gender: gender,113 age: age,
114 user_type: user_type,
115 });Expected property shorthand
108 firstname: firstName,
109 surname: surname,
110 email: email,
111 dob: dob,112 gender: gender,
113 age: age,
114 user_type: user_type,Expected property shorthand
107 set(ref(database, "users/" + userId), {
108 firstname: firstName,
109 surname: surname,
110 email: email,111 dob: dob,
112 gender: gender,
113 age: age,Expected property shorthand
106 const user_type = userInfo["user-type"];
107 set(ref(database, "users/" + userId), {
108 firstname: firstName,
109 surname: surname,110 email: email,
111 dob: dob,
112 gender: gender,
Description
ECMAScript 6 provides a concise form for defining object literal methods and properties. This syntax can make defining complex object literals much cleaner.
Here are a few common examples using the ES5 syntax:
const x = 1, y = 2, z = 3;
// properties
const foo = {
x: x,
y: y,
z: z,
};
// methods
const foo = {
a: function() {},
b: function() {}
};
The ES6 equivalent syntax is::
// properties
const foo = {x, y, z};
// methods
const bar = {
a() { return 1 },
b() { return 2 }
};
NOTE: The shorthand properties are equivalent to function expressions.
Meaning that they do not bind their own this inside their bodies.
It is still possible to access properties from the object inside a shorthand member function:
const object = {
x: 1,
getX() {
return this.x // valid
}
}
Bad Practice
const foo = {
bar: function () { return 1 }
};
Recommended
const foo = {
bar() { return 1 }
}