Lodash: deep copy object, but not all properties

Question

Is there a way to copy an object with lodash, but not all properties. The only way I know is to manually copy its property by property

required, for example:

var obj = { a: 'name', b: [1,2,3], c: { z: 'surname', x: [] }, d: { y: 'surname2', w: [] } }; 

and the result will look like

 var copy_obj = { b: [1,2,3], c: { z: 'surname', x: [] } }; 

Edit: I finally decided:

 var blacklist = ['a','d']; _.cloneDeep(_.omit(obj, blacklist)); 

Answer 1

 var blacklist = ['a','d']; _.cloneDeep(_.omit(obj, blacklist)); 

Answer 2

omit serves almost this purpose:

 _.cloneDeep(_.omit(obj, blacklist)); 

Spell here: https://jsfiddle.net/c639m9L2/

Answer 3

You can use the pick function:

 _.pick(obj, 'b', 'c') 

Answer 4

For this you can use the second parameter JSON.stringify .

 JSON.parse(JSON.stringify(obj, ['b', 'c'])) 

Answer 5

You can use the assign and select combination

 Object.assign(copy_obj, _.pick(obj, ['b', 'c'])); 

Thus, if copy_obj has other properties, you do not override them.