What does mean by Computed Property?
A computed property is a feature that allows expressions to be put in brackets. that is computed and utilised as a property name.
let's assume you needed to make a function that took in two contentions (key, value) and returned an object utilizing those contentions.
Prior to Computed Property Names, Because the property name on the object was a variable (key), you'd need to make the object first, then, at that point use bracket notation to assign that property to the value.
function keyObject (key, value) {
let obj = {}
obj[key] = value
return obj
}
keyObject('language', 'Javascript')
you can utilize object literal notation to allocate the expression as a property on the object without creating it first. So the code above would now be able to be reworked this way.
function keyObject (key, value) {
return {
[key]: value
}
}
keyObject('language', 'Javascript')
Where key can be any expressions long as it's enclosed by brackets, [].
Thank you for reading