Underscore.js _.has() Function
Underscore.js _.has() function is used to check whether the given object contains the given key or not.
Syntax:
_.has(object, key);
Parameters:
- object: It contains the object element.
- key: It contains the key that needs to be checked in the given object.
Return Value:
It returns a Boolean value True if the key is present in the object and False otherwise.
Example 1: This example shows the use of the underscore.js _.has() 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" > let hasFn = _.has({ Name: 'Ashok', Age: 32, Email: 'ashok@gfg.com' }, 'Age'); console.log(hasFn); </ script > </ body > </ html > |
Output:
Example 2: This example shows the use of the underscore.js _.has() 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" > let info = { Company: 'w3wiki', Address: 'Noida', Contact: '+91 9876543210' }; console.log(_.has(info, 'Company')); console.log(_.has(info, 'Cont')); </ script > </ body > </ html > |
Output:
Contact Us