mirror of
https://github.com/whoisclebs/lodash.git
synced 2026-02-13 20:37:48 +00:00
Bump to v4.0.0.
This commit is contained in:
185
lodash.clamp/index.js
Normal file
185
lodash.clamp/index.js
Normal file
@@ -0,0 +1,185 @@
|
||||
/**
|
||||
* lodash 4.0.0 (Custom Build) <https://lodash.com/>
|
||||
* Build: `lodash modularize exports="npm" -o ./`
|
||||
* Copyright 2012-2016 The Dojo Foundation <http://dojofoundation.org/>
|
||||
* Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
|
||||
* Copyright 2009-2016 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
|
||||
* Available under MIT license <https://lodash.com/license>
|
||||
*/
|
||||
|
||||
/** Used as references for various `Number` constants. */
|
||||
var NAN = 0 / 0;
|
||||
|
||||
/** `Object#toString` result references. */
|
||||
var funcTag = '[object Function]',
|
||||
genTag = '[object GeneratorFunction]';
|
||||
|
||||
/** 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 `global`. */
|
||||
var freeParseInt = parseInt;
|
||||
|
||||
/** Used for built-in method references. */
|
||||
var objectProto = global.Object.prototype;
|
||||
|
||||
/**
|
||||
* Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
|
||||
* of values.
|
||||
*/
|
||||
var objectToString = objectProto.toString;
|
||||
|
||||
/**
|
||||
* The base implementation of `_.clamp` which doesn't coerce arguments to numbers.
|
||||
*
|
||||
* @private
|
||||
* @param {number} number The number to clamp.
|
||||
* @param {number} [lower] The lower bound.
|
||||
* @param {number} upper The upper bound.
|
||||
* @returns {number} Returns the clamped number.
|
||||
*/
|
||||
function baseClamp(number, lower, upper) {
|
||||
if (number === number) {
|
||||
if (upper !== undefined) {
|
||||
number = number <= upper ? number : upper;
|
||||
}
|
||||
if (lower !== undefined) {
|
||||
number = number >= lower ? number : lower;
|
||||
}
|
||||
}
|
||||
return number;
|
||||
}
|
||||
|
||||
/**
|
||||
* Checks if `value` is classified as a `Function` object.
|
||||
*
|
||||
* @static
|
||||
* @memberOf _
|
||||
* @category Lang
|
||||
* @param {*} value The value to check.
|
||||
* @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
|
||||
* @example
|
||||
*
|
||||
* _.isFunction(_);
|
||||
* // => true
|
||||
*
|
||||
* _.isFunction(/abc/);
|
||||
* // => false
|
||||
*/
|
||||
function isFunction(value) {
|
||||
// The use of `Object#toString` avoids issues with the `typeof` operator
|
||||
// in Safari 8 which returns 'object' for typed array constructors, and
|
||||
// PhantomJS 1.9 which returns 'function' for `NodeList` instances.
|
||||
var tag = isObject(value) ? objectToString.call(value) : '';
|
||||
return tag == funcTag || tag == genTag;
|
||||
}
|
||||
|
||||
/**
|
||||
* Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
|
||||
* (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
|
||||
*
|
||||
* @static
|
||||
* @memberOf _
|
||||
* @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');
|
||||
}
|
||||
|
||||
/**
|
||||
* Converts `value` to a number.
|
||||
*
|
||||
* @static
|
||||
* @memberOf _
|
||||
* @category Lang
|
||||
* @param {*} value The value to process.
|
||||
* @returns {number} Returns the number.
|
||||
* @example
|
||||
*
|
||||
* _.toNumber(3);
|
||||
* // => 3
|
||||
*
|
||||
* _.toNumber(Number.MIN_VALUE);
|
||||
* // => 5e-324
|
||||
*
|
||||
* _.toNumber(Infinity);
|
||||
* // => Infinity
|
||||
*
|
||||
* _.toNumber('3');
|
||||
* // => 3
|
||||
*/
|
||||
function toNumber(value) {
|
||||
if (isObject(value)) {
|
||||
var other = isFunction(value.valueOf) ? 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);
|
||||
}
|
||||
|
||||
/**
|
||||
* Clamps `number` within the inclusive `lower` and `upper` bounds.
|
||||
*
|
||||
* @static
|
||||
* @memberOf _
|
||||
* @category Number
|
||||
* @param {number} number The number to clamp.
|
||||
* @param {number} [lower] The lower bound.
|
||||
* @param {number} upper The upper bound.
|
||||
* @returns {number} Returns the clamped number.
|
||||
* @example
|
||||
*
|
||||
* _.clamp(-10, -5, 5);
|
||||
* // => -5
|
||||
*
|
||||
* _.clamp(10, -5, 5);
|
||||
* // => 5
|
||||
*/
|
||||
function clamp(number, lower, upper) {
|
||||
if (upper === undefined) {
|
||||
upper = lower;
|
||||
lower = undefined;
|
||||
}
|
||||
if (upper !== undefined) {
|
||||
upper = toNumber(upper);
|
||||
upper = upper === upper ? upper : 0;
|
||||
}
|
||||
if (lower !== undefined) {
|
||||
lower = toNumber(lower);
|
||||
lower = lower === lower ? lower : 0;
|
||||
}
|
||||
return baseClamp(toNumber(number), lower, upper);
|
||||
}
|
||||
|
||||
module.exports = clamp;
|
||||
Reference in New Issue
Block a user