contains.js 259 B

123456789101112
  1. var isArrayLike = require('../type/is-array-like');
  2. var indexOf = Array.prototype.indexOf;
  3. var contains = function contains(arr, value) {
  4. if (!isArrayLike(arr)) {
  5. return false;
  6. }
  7. return indexOf.call(arr, value) > -1;
  8. };
  9. module.exports = contains;