X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs-website;a=blobdiff_plain;f=node_modules%2Fgrunt-legacy-util%2Fnode_modules%2Flodash%2FisSafeInteger.js;fp=node_modules%2Fgrunt-legacy-util%2Fnode_modules%2Flodash%2FisSafeInteger.js;h=f601243fee2e25074d0757b61b24ed0d15710576;hp=0000000000000000000000000000000000000000;hb=a2bd1bf0c2c1f1a17d188f4dc0726a45494cefae;hpb=57c063afa3f66b07c4bbddc2d6129a96d90f0aad diff --git a/node_modules/grunt-legacy-util/node_modules/lodash/isSafeInteger.js b/node_modules/grunt-legacy-util/node_modules/lodash/isSafeInteger.js new file mode 100644 index 000000000..f601243fe --- /dev/null +++ b/node_modules/grunt-legacy-util/node_modules/lodash/isSafeInteger.js @@ -0,0 +1,35 @@ +var isInteger = require('./isInteger'); + +/** Used as references for various `Number` constants. */ +var MAX_SAFE_INTEGER = 9007199254740991; + +/** + * Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754 + * double precision number which isn't the result of a rounded unsafe integer. + * + * **Note:** This method is based on [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger). + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`. + * @example + * + * _.isSafeInteger(3); + * // => true + * + * _.isSafeInteger(Number.MIN_VALUE); + * // => false + * + * _.isSafeInteger(Infinity); + * // => false + * + * _.isSafeInteger('3'); + * // => false + */ +function isSafeInteger(value) { + return isInteger(value) && value >= -MAX_SAFE_INTEGER && value <= MAX_SAFE_INTEGER; +} + +module.exports = isSafeInteger;