| _.keys() |
It returns the list of all keys of the given object. |
| _.allKeys() |
It returns all keys of the object and inherited properties. |
| _.values() |
It returns the list of all values of the object element. |
| _.mapObject() |
It transforms each value of the object based on the given function/operation. |
| _.pairs() |
It converts an object into [key, value] pairs. |
| _.invert() |
It returns the copy of object where object key is converted into value and object value is converted into key. |
| _.create() |
It creates a new object with the stated prototype and props, as its own property which is attached optionally. |
| _.functions() |
It returns the sorted list of all methods that present in an object. |
| _.findKey() |
It returns the key value where the predicate logic or condition returns the truth value or undefined. |
| _.extend() |
It creates a copy of all of the properties of the source objects over the destination object. |
| _.extendOwn() |
It is used to copy only own properties over to the destination object. |
| _.pick() |
It returns a copy of the object that filtered using the given key. |
| _.omit() |
It returns a copy of the object that filtered to omit the blacklisted keys. |
| _.defaults() |
It returns the object after filling in its undefined properties. |
| _.clone() |
It creates a shallow copy of the given object. |
| _.tap() |
It is used to call interceptor with the stated object. |
| _.property() |
It returns a function that will return the specified property of any passed-in object. |
| _.propertyOf() |
It takes an object as an argument and returns a function that will return the value of a provided property. |
| _.matcher() |
It tells if a passed in object includes all the key-value properties that are given in the attrs parameter. |
| _.isEqual() |
It finds whether the 2 given arrays are the same or not. |
| _.isMatch() |
It finds out if the property given in argument is present in the passed array or not. |
| _.isEmpty() |
It checks whether a list, array, string, object etc is empty or not. |
| _.isElement() |
It checks whether the element is a document object model or not. |
| _.isArray() |
It finds whether the passed argument is an array or not. |
| _.isObject() |
It checks whether the given object is an object or not. |
| _.isArguments() |
It checks whether the given object is an argument or not. |
| _.isFunction() |
It checks whether the given object is function or not. |
| _.isString() |
It checks whether the given object element is string or not. |
| _.isNumber() |
It checks whether the given object parameter is number or not. |
| _.isFinite() |
It checks whether the value of the parameter passed is finite or not. |
| _.isBoolean() |
It finds whether the element passed is true/ false or something else. |
| _.isDate() |
It is used to tell if the given object is a date object or not. |
| _.isRegExp() |
It finds whether the object passed is a regular expression or not. |
| _.isError() |
It checks whether the given object is javascript Error Object or not. |
| _.isSymbol() |
It checks whether the given object is javascript Symbol Object or not. |
| _.isMap() |
It checks whether the given object is javascript Map or not. |
| _.isWeakMap() |
It checks whether the given object is javascript weakmap or not. |
| _.isSet() |
It checks whether the given object is javascript set or not. |
| _.isWeakSet() |
It checks whether the given object is JavaScript weakset or not. |
| _.isArrayBuffer() |
It checks if the stated object is an ArrayBuffer or not. |
| _.isNaN() |
It is used to find whether the value of the object passed is NaN or not. |
| _.isNull() |
It is used to find whether the value of the object is null. |
| _.isUndefined() |
It checks if the parameter passed to it is undefined or not. |