The _.has() function is used to check whether the given object contains the given key or not.
Syntax:
_.has(object, key)
Parameters: This function accept two parameters as mentioned above and described below:
- object: It contains the object element.
- key: It contains the key that need to be check in the given object.
Return Value: It returns a Boolean value True if the key is present in the object and False otherwise.
Below examples illustrate the _.has() function in Underscore.js:
Example 1:
HTML
<!DOCTYPE html><html><head> <script type="text/javascript" src= </script></head><body> <script type="text/javascript"> var hasFn = _.has({ Name: 'Ashok', Age: 32, Email: '[email protected]' }, 'Age'); console.log(hasFn); </script></body></html> |
Output:
Example 2:
HTML
<!DOCTYPE html><html><head> <script type="text/javascript" src= </script></head><body> <script type="text/javascript"> var info = { Company: 'neveropen', Address: 'Noida', Contact: '+91 9876543210' }; console.log(_.has(info, 'Company')); console.log(_.has(info, 'Cont')); </script></body></html> |
Output:
