Answered: how do i test this javascript function…

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

Problem 1PE

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Question

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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