ヤミRoot VoidGate

Viewing: inRange.js

var baseInRange = require('./_baseInRange'),
    toFinite = require('./toFinite'),
    toNumber = require('./toNumber');

/**
 * Checks if `n` is between `start` and up to, but not including, `end`. If
 * `end` is not specified, it's set to `start` with `start` then set to `0`.
 * If `start` is greater than `end` the params are swapped to support
 * negative ranges.
 *
 * @static
 * @memberOf _
 * @since 3.3.0
 * @category Number
 * @param {number} number The number to check.
 * @param {number} [start=0] The start of the range.
 * @param {number} end The end of the range.
 * @returns {boolean} Returns `true` if `number` is in the range, else `false`.
 * @see _.range, _.rangeRight
 * @example
 *
 * _.inRange(3, 2, 4);
 * // => true
 *
 * _.inRange(4, 8);
 * // => true
 *
 * _.inRange(4, 2);
 * // => false
 *
 * _.inRange(2, 2);
 * // => false
 *
 * _.inRange(1.2, 2);
 * // => true
 *
 * _.inRange(5.2, 4);
 * // => false
 *
 * _.inRange(-3, -2, -6);
 * // => true
 */
function inRange(number, start, end) {
  start = toFinite(start);
  if (end === undefined) {
    end = start;
    start = 0;
  } else {
    end = toFinite(end);
  }
  number = toNumber(number);
  return baseInRange(number, start, end);
}

module.exports = inRange;

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