I want to know if there is a way to access the value of a key to add as the value of another key in the same object.
For example I want:
obj = {key1: 'apple', key2: 'applesauce'};
I tried obj = {key1: 'apple', key2: this.key1 + 'sauce'}
Also tried obj = {key1: 'apple', key2: key1 + 'sauce'}
I want it so that updating key1 automatically updates key2.
Thanks
You can do it with a getter.
obj = {
key1: 'apple',
get key2() {
return this.key1 + 'sauce';
}
}
console.log(obj.key2);
obj.key1 = 'awesome';
console.log(obj.key2);Basically, not at declaration, not that I know of. You can't refer to the object inside what is basically an object literal using this until the thing actually exists.
You could create a function to generate that object:
function keymaker(key) {
return {
key1: key,
key2: key + 'sauce'
}
}
obj = keymaker('apple');