lodash-addons
v2.0.1
Published
Community mixins for lodash
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Lodash Addons
A collection of utility mixins for lodash. Supports both CommonJS and AMD module formats (meaning, works well with module bundlers or RequireJS-based projects).
Installation
- Yarn:
yarn add --dev lodash-addons
- NPM:
npm install --save-dev lodash-addons
Array
_.transformValueMap
Collection
_.differenceKeys
_.filterKeys
Date
_.parseDate
Lang
_.getArray
_.getBoolean
_.getFinite
_.getFunction
_.getMap
_.getNumber
_.getObject
_.getPlainObject
_.getSet
_.getString
_.getWeakMap
_.getWeakSet
_.isIterable
_.isNonEmptyString
_.toBool
Math
_.sign
Object
_.hasInOfType
_.hasOfType
_.objectWith
_.parseQueryString
_.toQueryString
Preconditions
_.check
String
_.generateKey
_.slugify
Util
_.getPrototype
“Array” Methods
Transforms a value in each element of collection if the path is not undefined.
Arguments
collection
(Array): Array of objectspath
(string): The path of the value to transformtransformer
(function): Callback which returns the transformed value
“Collection” Methods
Gets indices for which elements differ between two arrays.
Arguments
first
(array): First arraysecond
(array): Second array
Example
_.differenceKeys([false, true], [false, false]);
// => [1]
Iterates over keys of a collection, returning an array of all keys predicate returns truthy for. The predicate is invoked with three arguments: (value, index|key, collection).
Arguments
collection
(object): The object to iterate over.iteratee
(function): The function invoked per iteration.
“Date” Methods
Parses a value by passing it to new Date().
Arguments
val
(string): Value to be parsed
“Lang” Methods
Returns value if an array, otherwise a default.
Arguments
value
(mixed): Source valuereplacement
(number): Custom default if value is invalid type.
Example
_.getArray(null);
// => []
_.getArray(null, ['test']);
// => ['test']
Returns value if a boolean, otherwise a default boolean.
Arguments
value
(mixed): Source valuereplacement
(number): Custom default if value is invalid type.
Example
_.getBoolean(null);
// => false
_.getBoolean(null, true);
// => true
Returns value if a finite number, otherwise a default number.
Arguments
value
(mixed): Source valuereplacement
(number): Custom default if value is invalid type.
Example
_.getFinite('');
// => 0
_.getFinite('', 100);
// => 100
_.getFinite(NaN, 25);
// => 25
Returns value if a function, otherwise a default function.
Arguments
value
(mixed): Source valuereplacement
(number): Custom default if value is invalid type.
Example
_.getFunction(null);
// => function () {}
Returns value if a Map, otherwise a default map.
Arguments
value
(mixed): Source valuereplacement
(number): Custom default if value is invalid type.
Returns value if a number, otherwise a default number.
Arguments
value
(mixed): Source valuereplacement
(number): Custom default if value is invalid type.
Example
_.getNumber('');
// => 0
_.getNumber('', 100);
// => 100
Returns value if a object, otherwise a default object.
Arguments
value
(mixed): Source valuereplacement
(number): Custom default if value is invalid type.
Example
_.getObject('');
// => {}
Returns value if a plain object, otherwise a default object.
Arguments
value
(mixed): Source valuereplacement
(number): Custom default if value is invalid type.
Example
_.getPlainObject('');
// => {}
Returns value if a Set, otherwise a default set.
Arguments
value
(mixed): Source valuereplacement
(set): Custom default if value is invalid type.
Example
_.getSet('');
// => Set()
Returns value if a string, otherwise a default string.
Arguments
value
(mixed): Source valuereplacement
(number): Custom default if value is invalid type.
Example
_.getString(false);
// => ''
Returns value if a WeakMap, otherwise a default WeakMap.
Arguments
value
(mixed): Source valuereplacement
(weakmap): Custom default if value is invalid type.
Example
_.getWeakMap(false);
// => ''
Returns value if a WeakSet, otherwise a default WeakSet.
Arguments
value
(mixed): Source valuereplacement
(weakset): Custom default if value is invalid type.
Example
_.getWeakSet(false);
// => ''
Checks if value is iterable.
Arguments
object
(object): An object
Example
_.isIterable([]);
// => true
Checks if value is a non-empty string.
Arguments
string
(object): String
Example
_.isNonEmptyString('');
// => false
Converts a value to a boolean.
Arguments
value
(*): Source value
Example
_.toBool(1);
// => true
“Math” Methods
Returns a number representing the sign of value
.
If value
is a positive number, negative number, positive zero or negative zero,
the function will return 1
, -1
, 0
or -0
respectively. Otherwise, NaN is returned.
Arguments
value
(number): A number
Returns
(number): A number representing the sign
Example
_.sign(10);
// => 1
_.sign(-10);
// => -1
“Object” Methods
If _.hasIn returns true, run a validator on value.
Arguments
value
(mixed): Collection for _.hasInpath
(number|string): Path.validator
(function): Function to validate value.
If _.has returns true, run a validator on value.
Arguments
value
(mixed): Collection for _.haspath
(string): Pathvalidator
(function): Function to validate value.
Example
_.hasOfType({ test: '' }, 'test', _.isString);
// => true
Shorthand object creation when sole property is a variable, or a path.
Arguments
object
(): Existing object *(optional)*path
(number|string): Propertyvalue
(mixed): Value
Example
// To create a new object:
_.objectWith('key', 'value');
// => { key: 'value' }
_.objectWith('a.deep.path', 'value');
// => {
a: {
deep: {
path: 'value'
}
}
}
// Using existing:
_.objectWith({ a: 1 }, 'b', 2);
// => { a: 1, b: 2 }
Parses query string into key/value object.
Arguments
string
(string): Query string.
Example
_.parseQueryString('key=value');
// => { key: 'value' }
Converts an object's key/values to a query string.
Arguments
object
(object): Source key/value collection
Example
_.toQueryString({ a: 1, b: 2 });
// => a=1&b=2
“Preconditions” Methods
Throw a TypeError if value doesn't match one of any provided validation methods.
Arguments
value
(mixed): Value
“String” Methods
Generates a random alphanumeric string with length n.
Arguments
length
(int): Desired length.
Example
_.generateKey(5);
// => 'L7IpD'
Generates a url-safe "slug" form of a string.
Arguments
string
(string): String value.
Example
_.slugify('A Test');
// => a-test
“Util” Methods
Gets the prototype for the given value.
Arguments
value
(*): Source value
Example
_.getPrototype(5);
// => { toFixed: func(), ... }