este es mi código javascript no sé dónde está el problema? ¿solo muestra el nombre?
// let people = [{ first_name: "Riche", last_name: "Aboubaker" }, { first_name: 'KADD', last_name: 'Missinsn' }, { first_name: 'laala', last_name: 'Jason' }, ] // create new array with the string full name of each person let fullNames = people.map((person) => { return person.first_name , person.last_name ; }); console.log(fullNames);La coma no concatena las cadenas. Use el operador + para esto. Además, no olvides agregar un espacio en el medio.
let people = [{ first_name: "Riche", last_name: "Aboubaker" }, { first_name: 'KADD', last_name: 'Missinsn' }, { first_name: 'laala', last_name: 'Jason' }, ] // create new array with the string full name of each person let fullNames = people.map((person) => { return person.first_name + ' ' + person.last_name ; }); console.log(fullNames);