Underscore.js _.invert() Function
The _.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 reverse.
Syntax:
_.invert( object )
Parameters: This function accepts single parameter as mentioned above and described below:
- 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:
<!DOCTYPE html> <html> Â Â <head> Â Â Â Â <script type="text/javascript"Â Â Â Â Â Â Â Â Â Â Â Â Â src= Â Â Â Â </script> </head> Â Â <body> Â Â Â Â <script type="text/javascript"> Â Â Â Â Â Â Â Â Â Â var obj = { Â Â Â Â Â Â Â Â Â Â Â Â Company: "zambiatek", Â Â Â Â Â Â Â Â Â Â Â Â Address: "Noida", Â Â Â Â Â Â Â Â Â Â Â Â Contact: "+91 9876543210", Â Â Â Â Â Â Â Â Â Â Â Â Email: "abc@gfg.com" Â Â Â Â Â Â Â Â } Â Â Â Â Â Â Â Â console.log(_.invert(obj)); Â Â Â Â </script> </body> Â Â </html> |
Output:
Example 2:
<!DOCTYPE html> <html> Â Â <head> Â Â Â Â <script type="text/javascript"Â Â Â Â Â Â Â Â Â Â Â Â Â src= Â Â Â Â </script> </head> Â Â <body> Â Â Â Â <script type="text/javascript"> Â Â Â Â Â Â Â Â Â Â var inv = _.invert({ Â Â Â Â Â Â Â Â Â Â Â Â num1: 10, Â Â Â Â Â Â Â Â Â Â Â Â num2: 20, Â Â Â Â Â Â Â Â Â Â Â Â num3: 30, Â Â Â Â Â Â Â Â Â Â Â Â num4: 40 Â Â Â Â Â Â Â Â }); Â Â Â Â Â Â Â Â Â Â console.log(inv); Â Â Â Â </script> </body> Â Â </html> |
Output:
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