* Returns a file extension, or another string * if the provided parameter has no extension. * * @param {String} filename * @return {String[

* Validates clipping params. Per drawImage spec sWidth and sHight cannot be * negative or greater than image intrinsic width and height * @private

* Creates an array of the enumerable property names of the array-like `value`. * * @private * @param {*} value The value to query.

* The base implementation of `_.assign` without support for multiple sources * or `customizer` functions. * * @private * @param {O

* The base implementation of `_.at` without support for individual paths. * * @private * @param {Object} object The object to iterate o

* The base implementation of `_.conformsTo` which accepts `props` to check. * * @private * @param {Object} object The object to inspect

* The base implementation of `_.delay` and `_.defer` which accepts `args` * to provide to `func`. * * @private * @param {Function}

* The base implementation of methods like `_.findKey` and `_.findLastKey`, * without support for iteratee shorthands, which iterates over `collecti

* The base implementation of `getAllKeys` and `getAllKeysIn` which uses * `keysFunc` and `symbolsFunc` to get the enumerable property names and

* The base implementation of `_.isNative` without bad shim checks. * * @private * @param {*} value The value to check. * @returns

* The base implementation of `_.matches` which doesn't clone `source`. * * @private * @param {Object} source The object of property val

* The base implementation of `_.matchesProperty` which doesn't clone `srcValue`. * * @private * @param {string} path The path of the pr

* The base implementation of `_.mean` and `_.meanBy` without support for * iteratee shorthands. * * @private * @param {Array} array The ar

* The base implementation of `_.nth` which doesn't coerce arguments. * * @private * @param {Array} array The array to query. * @pa

* The base implementation of `_.orderBy` without param guards. * * @private * @param {Array|Object} collection The collection to iterat

* The base implementation of `_.pickBy` without support for iteratee shorthands. * * @private * @param {Object} object The source obje

* The base implementation of `_.pullAt` without support for individual * indexes or capturing the removed elements. * * @private *

* The base implementation of `_.sortedUniq` and `_.sortedUniqBy` without * support for iteratee shorthands. * * @private * @param

* The base implementation of `_.toNumber` which doesn't ensure correct * conversions of binary, hexadecimal, or octal string values. *

* The base implementation of `_.update`. * * @private * @param {Object} object The object to modify. * @param {Array|string} path

* The base implementation of `wrapperValue` which returns the result of * performing a sequence of actions on the unwrapped `value`, where each

* This base implementation of `_.zipObject` which assigns values using `assignFunc`. * * @private * @param {Array} props The property i

* Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol * that is not found in the character symbols. * * @private *

* Used by `_.trim` and `_.trimStart` to get the index of the first string symbol * that is not found in the character symbols. * * @private

* Creates a clone of `buffer`. * * @private * @param {Buffer} buffer The buffer to clone. * @param {boolean} [isDeep] Specify a d

* Creates a clone of `typedArray`. * * @private * @param {Object} typedArray The typed array to clone. * @param {boolean} [isDeep]

* Creates an array that is the composition of partially applied arguments, * placeholders, and provided arguments into a single array of argument

* This function is like `composeArgs` except that the arguments composition * is tailored for `_.partialRight`. * * @private * @pa

* Creates a function that returns `value`. * * @static * @memberOf _ * @since 2.4.0 * @category Util * @param {*} value

* Creates a `baseEach` or `baseEachRight` function. * * @private * @param {Function} eachFunc The function to iterate over a collection

* Creates a base function for methods like `_.forIn` and `_.forOwn`. * * @private * @param {boolean} [fromRight] Specify iterating from

* Creates a function like `_.lowerFirst`. * * @private * @param {string} methodName The name of the `String` case method to use. *

* Creates a `_.find` or `_.findLast` function. * * @private * @param {Function} findIndexFunc The function to find the collection index

* Creates a `_.flow` or `_.flowRight` function. * * @private * @param {boolean} [fromRight] Specify iterating from right to left.

* Creates a function like `_.invertBy`. * * @private * @param {Function} setter The function to set accumulator values. * @param {

VIDEO STUFF

* Creates a `_.range` or `_.rangeRight` function. * * @private * @param {boolean} [fromRight] Specify iterating from right to left.

* Creates a function that wraps `func` to continue currying. * * @private * @param {Function} func The function to wrap. * @param

* Creates a `_.toPairs` or `_.toPairsIn` function. * * @private * @param {Function} keysFunc The function to get the keys of a given ob

* A specialized version of `baseIsEqualDeep` for arrays with support for * partial deep comparisons. * * @private * @param {Array}

* Gets the value at `path` of `object`. If the resolved value is * `undefined`, the `defaultValue` is returned in its place. * * @stati

* Creates an array of own enumerable property names and symbols of `object`. * * @private * @param {Object} object The object to query.

* Creates an array of own and inherited enumerable property names and * symbols of `object`. * * @private * @param {Object} object

* Helper function for select and selectAll

* Checks if `path` is a direct or inherited property of `object`. * * @static * @memberOf _ * @since 4.0.0 * @category Object