Underscore.js _.invert() Function
Underscore.js _.invert() function is used to return the copy of an object where the object key is converted into value and object value is converted into the key. It means the [key, value] of the object is reversed.
Syntax:
_.invert( object );
Parameters:
- object: It contains the object element that holds the elements of key and value pair.
Return Value:
It returns the [key, value] of an object in reverse [value, key] order.
Example 1: The below code will explain the implementation of the _.invert() function in underscore.js.
html
<!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"> const obj = { Company: "w3wiki", Address: "Noida", Contact: "+91 9876543210", Email: "abc@gfg.com" } console.log(_.invert(obj)); </script></body></html> |
Output:
Example 2: The below code example is another implementation of the _.invert() function.
html
<!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"> const inv = _.invert({ num1: 10, num2: 20, num3: 30, num4: 40 }); console.log(inv); </script></body></html> |
Output:
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