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Diffstat (limited to 'node_modules/lodash/isNumber.js')
-rw-r--r-- | node_modules/lodash/isNumber.js | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/node_modules/lodash/isNumber.js b/node_modules/lodash/isNumber.js new file mode 100644 index 0000000..cd34ee4 --- /dev/null +++ b/node_modules/lodash/isNumber.js @@ -0,0 +1,38 @@ +var baseGetTag = require('./_baseGetTag'), + isObjectLike = require('./isObjectLike'); + +/** `Object#toString` result references. */ +var numberTag = '[object Number]'; + +/** + * Checks if `value` is classified as a `Number` primitive or object. + * + * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are + * classified as numbers, use the `_.isFinite` method. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a number, else `false`. + * @example + * + * _.isNumber(3); + * // => true + * + * _.isNumber(Number.MIN_VALUE); + * // => true + * + * _.isNumber(Infinity); + * // => true + * + * _.isNumber('3'); + * // => false + */ +function isNumber(value) { + return typeof value == 'number' || + (isObjectLike(value) && baseGetTag(value) == numberTag); +} + +module.exports = isNumber; |