filter table using vanilla js

Question

Roy · Accepted Answer

Assuming it's a simple "equal" filter and the table is a 2-dimensional array like this-

var table = [
  ['name', 'occupation', 'age'],
  ['Roy1', 'Software Engineer', '29'],
  ['Roy2', 'Software Engineer', '26']
];

I'd go with -

function filterTable(table, param, value) {
    var paramIndex = table[0].indexOf(param);
    return table.reduce(function (acc, row) {
        if (row[paramIndex] === value) {
            acc.push(row);
        }
        return acc;
    }, [])
}

And then, for example for the input -
filterTable(table, 'age', '29')

I'd get back -
[['Roy1', 'Software Engineer', '29']]

Rishabh Agrawal · Answer

var table = [
  ['name', 'occupation', 'age'],
  ['Roy1', 'Software Engineer', '28'],
  ['Roy2', 'Software Engineer', '29']
];

function filterTable(table, param, value) {
  var paramIndex = table[0].indexOf(param);
  return table.filter(item=>item[paramIndex]===value)
}
var res=filterTable(table, 'age', '29')
console.log(abc)

Anonimo · Answer

var table = [
  ['name', 'occupation', 'age'],
  ['Roy1', 'Software Engineer', '29'],
  ['Roy2', 'Software Engineer', '26']
];

let filterTable = (table, field, val) => {

  const col = table[0].indexOf(field);
  return table.filter(row => row[col] === val)[0];

}

let res = filterTable(table, 'name', 'Roy2');

console.log(res);

Amazon

Domanda di colloquio di Amazon

Risposte di colloquio

Aziende seguite

Ricerche di lavoro