Create a new object via copying, sometimes transforming, properties from the source object.
The method supports different signatures with the first argument always the source object.
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Object cloneObject( object source )
Clone source with every property as whatObject.assign()does. -
Object cloneObject( object source, RegExp keynamePattern )
Clone source with properties matching keynamePattern. -
Object cloneObject( object source, Array keynames )
Item of keynames may be string or RegExp instance. If item is a string, key in source which strictly equals to the keyname will be cloned. However, if it is a RegExp instance, all keys in source will be iterated and those matched will be cloned. -
Object cloneObject( object source, Function mapper )
The mapper SHOULD be a function who accepts two arguments(key, value)and return an array[ newKey, newValue ]. -
Object cloneObject( object source, keynames, Function mapper )
Choose properties matching keynames, then transform key-value couples via mapper.
Here keynames may be a string representing the excat one property name, a RegExp to find matching properties, or an array of keynames. -
Object cloneObject( object source, [ Array keynames, Function mapper, ] boolean removeClonedKeys )
When removeClonedKeys set true, all matching keynames will be deleted from source object.