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- /**
- * lodash (Custom Build) <https://lodash.com/>
- * Build: `lodash modularize exports="npm" -o ./`
- * Copyright jQuery Foundation and other contributors <https://jquery.org/>
- * Released under MIT license <https://lodash.com/license>
- * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
- * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
- */
-
- /** Used as references for various `Number` constants. */
- var NAN = 0 / 0;
-
- /** `Object#toString` result references. */
- var symbolTag = '[object Symbol]';
-
- /** Used to match leading and trailing whitespace. */
- var reTrim = /^\s+|\s+$/g;
-
- /** Used to detect bad signed hexadecimal string values. */
- var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;
-
- /** Used to detect binary string values. */
- var reIsBinary = /^0b[01]+$/i;
-
- /** Used to detect octal string values. */
- var reIsOctal = /^0o[0-7]+$/i;
-
- /** Built-in method references without a dependency on `root`. */
- var freeParseInt = parseInt;
-
- /** Used for built-in method references. */
- var objectProto = Object.prototype;
-
- /**
- * Used to resolve the
- * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
- * of values.
- */
- var objectToString = objectProto.toString;
-
- /**
- * Checks if `value` is the
- * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
- * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
- *
- * @static
- * @memberOf _
- * @since 0.1.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an object, else `false`.
- * @example
- *
- * _.isObject({});
- * // => true
- *
- * _.isObject([1, 2, 3]);
- * // => true
- *
- * _.isObject(_.noop);
- * // => true
- *
- * _.isObject(null);
- * // => false
- */
- function isObject(value) {
- var type = typeof value;
- return !!value && (type == 'object' || type == 'function');
- }
-
- /**
- * Checks if `value` is object-like. A value is object-like if it's not `null`
- * and has a `typeof` result of "object".
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
- * @example
- *
- * _.isObjectLike({});
- * // => true
- *
- * _.isObjectLike([1, 2, 3]);
- * // => true
- *
- * _.isObjectLike(_.noop);
- * // => false
- *
- * _.isObjectLike(null);
- * // => false
- */
- function isObjectLike(value) {
- return !!value && typeof value == 'object';
- }
-
- /**
- * Checks if `value` is classified as a `Symbol` primitive or object.
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.
- * @example
- *
- * _.isSymbol(Symbol.iterator);
- * // => true
- *
- * _.isSymbol('abc');
- * // => false
- */
- function isSymbol(value) {
- return typeof value == 'symbol' ||
- (isObjectLike(value) && objectToString.call(value) == symbolTag);
- }
-
- /**
- * Converts `value` to a number.
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to process.
- * @returns {number} Returns the number.
- * @example
- *
- * _.toNumber(3.2);
- * // => 3.2
- *
- * _.toNumber(Number.MIN_VALUE);
- * // => 5e-324
- *
- * _.toNumber(Infinity);
- * // => Infinity
- *
- * _.toNumber('3.2');
- * // => 3.2
- */
- function toNumber(value) {
- if (typeof value == 'number') {
- return value;
- }
- if (isSymbol(value)) {
- return NAN;
- }
- if (isObject(value)) {
- var other = typeof value.valueOf == 'function' ? value.valueOf() : value;
- value = isObject(other) ? (other + '') : other;
- }
- if (typeof value != 'string') {
- return value === 0 ? value : +value;
- }
- value = value.replace(reTrim, '');
- var isBinary = reIsBinary.test(value);
- return (isBinary || reIsOctal.test(value))
- ? freeParseInt(value.slice(2), isBinary ? 2 : 8)
- : (reIsBadHex.test(value) ? NAN : +value);
- }
-
- module.exports = toNumber;
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