Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Question
how do i test this javascript function
showing it working would be amazing!!!!
the function and instructions are as follows
function repeatf(f,n) {
if(n<=0) {return "";}
var result= new Array(n);
for(var i=0; i<n; i++) {
result[i]= f();
}
return result;
}
repeatf( f, n )
This function accepts a function of no arguments ( f ) and an integer number ( n ). The function must return a list that contains the results of n executions of f. If n is non-positive this function must return the empty list.
Examples
- repeatf( () => { return "cow"; } , 3 ) => [ "cow", "cow", "cow" ]
- repeatf( function() { return 3; }, 2 ) => [ 3, 3 ]
- repeatf( Math.random, 3 ) => [ <random-number>, <random-number>, <random-number> ]
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