const arryStudent = [{ name: 'faizan', rollNo: 11, marks: 80 }, { name: 'irfan', rollNo: 12, marks: 75 }, { name: 'Abdullah', rollNo: 13, marks: 69 }, { name: 'Asad', rollNo: 23, marks: 71 }, { name: 'ali', rollNo: 14, marks: 71 } ]; const startsWithA = arryStudent.filter((student) => student.name.startsWith('A')); console.log(startsWithA);Esta es la forma en que puede comprobar..
arryStudent.forEach(element => { if (element.name[0] == element.name[0].toLowerCase()){ console.log(`${element.name} startswith lower case`); } if (element.name[0] == element.name[0].toUpperCase()){ console.log(`${element.name} startswith Upper case`); } });Escribe una función que filtre los nombres según la letra.
const students=[{name:"faizan",rollNo:11,marks:80},{name:"irfan",rollNo:12,marks:75},{name:"Abdullah",rollNo:13,marks:69},{name:"Asad",rollNo:23,marks:71},{name:"ali",rollNo:14,marks:71}]; // Write a function that accepts the data, // and the letter you're looking for function find(arr, letter) { // Always lowercase the letter const lc = letter.toLowerCase(); // And then filter out the names that match return arr.filter(student => { return student .name .toLowerCase() .startsWith(lc); }); } console.log(find(students, 'A'));Puedes usar startsWith dos veces como:
const arryStudent = [{ name: 'faizan', rollNo: 11, marks: 80 }, { name: 'irfan', rollNo: 12, marks: 75 }, { name: 'Abdullah', rollNo: 13, marks: 69 }, { name: 'Asad', rollNo: 23, marks: 71 }, { name: 'ali', rollNo: 14, marks: 71 } ]; const startsWithA = arryStudent.filter((student) => student.name.startsWith('A') || student.name.startsWith('a')); console.log(startsWithA);