how do i test this javascript function the function and directions for function are as follows showing it working would be amazing!!     function matchmaker(obj) {     function pred(input) {         for(var x in obj) {             if(obj[x]!= input[x]) {                 return false;             }         }         return true;     }     return pred; }   matchmaker( obj ) This function accepts an object (obj) and returns a predicate function. The predicate function accepts a single input and returns true if the input contains all of the key/value properties of obj. Examples var m = matchmaker( { a : 'b', c : 3 } ); m( { a : 'b', c : 3, d : true } ) => true m( { a : 'b', c : 4, d : true } ) => false m( 328 ) => false

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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how do i test this javascript function

the function and directions for function are as follows

showing it working would be amazing!!

 

 

function matchmaker(obj) {
    function pred(input) {
        for(var x in obj) {
            if(obj[x]!= input[x]) {
                return false;
            }
        }
        return true;
    }
    return pred;
}

 

matchmaker( obj )

This function accepts an object (obj) and returns a predicate function. The predicate function accepts a single input and returns true if the input contains all of the key/value properties of obj.

Examples

  • var m = matchmaker( { a : 'b', c : 3 } );
  • m( { a : 'b', c : 3, d : true } ) => true
  • m( { a : 'b', c : 4, d : true } ) => false
  • m( 328 ) => false

 

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