searchValue - nodef/extra-object GitHub Wiki
Find key with a given value.
Similar: searchValue, searchValueAll. Similar: find, search, searchValue.
function searchValue(x, v, fc, fm)
// x: an object
// v: search value
// fc: compare function (a, b)
// fm: map function (v, k, x)
const object = require('extra-object');
var x = {a: 1, b: -2, c: 3, d: 2, e: 5};
object.searchValue(x, 2);
// → 'd' ^
object.searchValue(x, 2, (a, b) => Math.abs(a) - Math.abs(b));
// → 'b' ^
object.searchValue(x, 2, null, v => Math.abs(v));
// → 'b' ^