foop/src/deps/math/decrement.js

interfaces that describe their intentions.

/**
 * @since 5.0.0-beta.4
 * @memberOf math
 * @name decrement
 * @alias dec
 * @alias minusOne
 * @category Math
 *
 * @param {number} x number to decrement
 * @return {number} x - 1
 *
 * @example
 *  decrement(2) //=> 1
 */
// module.exports = subtract(1)
module.exports = x => x - 1