Underscore.js _.extendOwn() Function
The _.extendOwn() function is used to copy only own properties over to the destination object. This function is similar to the _.extend() function.
Syntax:
_.extendOwn(destination, *sources)
Parameters: This function accept two parameters as mentioned above and described below:
- destination: This parameter holds the destination object file.
- sources: This parameter holds the source object file.
Return Value: It returns a copy of own properties over to the destination object.
Example 1:
<!DOCTYPE html> < html > < head > < script type = "text/javascript" src = "https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.9.1/underscore-min.js" > </ script > </ head > < body > < script type = "text/javascript" > var obj1 = { key1: 'Beginner', }; var obj2 = { key2: 'w3wiki', }; console.log(_.extendOwn(obj1, obj2)); </ script > </ body > </ html > |
Output:
Example 2:
<!DOCTYPE html> < html > < head > < script type = "text/javascript" src = "https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.9.1/underscore-min.js" > </ script > </ head > < body > < script type = "text/javascript" > var obj1 = { key1: 'Beginner', }; var obj2 = { key2: 'w3wiki', }; console.log(_.extendOwn({ Company: 'w3wiki', Address: 'Noida' }, { Contact: '+91 9876543210', Email: 'abc@gfg.com' }, { Author: 'Ashok' })); </ script > </ body > </ html > |
Output:
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