6864 shaares
Setting the property name into brackets give the ability to evaluate its value as an expression. Thus custom property names can be created:
let a = {
['foo' + 1]: i,
}
console.log(a.foo1) // print 1
Setting the property name into brackets give the ability to evaluate its value as an expression. Thus custom property names can be created:
let a = {
['foo' + 1]: i,
}
console.log(a.foo1) // print 1