If I have an array of objects, for example:
var cars = [{name:"Geronimo", color:"red"},{name:"Ronaldo",color:"green"}]
Is there a simple way Im not seeing to select all the "color" attributes? So that I would get:
"red", "green"
So say something like (INVENTED):
console.log(cars[selectingallobjects].name)
Thanks in advance!
There isn't a ready way of doing that, you need to iterate to get the values.
You can use .map(), an Array method that creates a new array based on the values returned from the function.
It can be done in a single line.
See below:
var cars = [{name:"Geronimo", color:"red"},{name:"Ronaldo",color:"green"}]
let result = cars.map(car => car.color)
console.log(result)you can use map to do the following, it loops for every object in the array.
var cars = [{name:"Geronimo", color:"red"},{name:"Ronaldo",color:"green"}]
cars.map((eachObject)=>{
console.log(eachObject.color);
});
return eachObject.color not console logit
Using for-loop and take only color property
var cars = [{name:"Geronimo", color:"red"},{name:"Ronaldo",color:"green"}]
var carNames = []
for(car of cars){
carNames.push(car['color'])
}
console.log(carNames)// [ "red", "green" ]
use map which is method creates a new array:
var carNames = cars.map(car=>car.color)