let studentNameList = [ "Phước", "Vũ Anh", "Ánh Dương" ] for(let i = 0; i < studentNameList.length; i++) { console.log(studentNameList[i]) } for (let studentName of studentNameList) { console.log(studentName) } for (let key in studentNameList) { console.log(key) } // i -> index // studentNameList[i] -> value // studentNameList.length -> thuộc tính length // studentNameList.push() -> phương thức (method ~ function) // studentNameList.push("Nam") // studentNameList.push("Hồng", "Yến", "Tâm") console.log("studentNameList", studentNameList) studentNameList.splice(1, 1) console.log("studentNameList", studentNameList) studentNameList[0] = "Phước Đẹp Trai" console.log("studentNameList", studentNameList)