Вы можете использовать orderBy () :
const arr = [
{number: 123, name: "b"},
{number: 123, name: "a"},
{number: 122, name: "br"},
{number: 124, name: "bR"},
{number: 124, name: "Br"}
];
console.log(
_.orderBy(arr, e => [e.number, e.name.toLowerCase() /* case insensitively */])
);
const arr2 = [
{number: 121, name: "c"},
{number: 122, name: "b"},
{number: 123, name: "a"}
];
console.log(
_.orderBy(arr2, e => e.number /* descending */, 'desc')
);
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