
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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how would i make a javascript function as follows
myChoice( items )
This function accepts a list of items as input and creates a function that returns a randomly-chosen item. After choosing a random item, that same item will be always be returned, regardless of the functions input, with one exception. If the first input is the string 'rechoose', then a new random item will be chosen and therafter returned.
Examples
- var a = myChoice( [1, "a", 3, false] );
- a( 3, 12 ) => 3 // a random value. Your code may differ.
- a( 51, -2) => 3
- a( "happy", false ) => 3
- a( [1,2,3]) => 3
- a( 'rechoose') => false // a random value. Your code may differ.
- a( a, a ) => false
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