useClones Example (#83)

const NC = require( "node-cache" ); // run the same code with and without `useClones` ( [ true, false ] ).forEach( ( useClones ) => { const cache = new NC( { useClones: useClones } ); const complex = { a: [ 13, 42, 666 ], foo: "Alice", bar: "Bob" } const simple = "Ding Dong" cache.set( "A", complex ) cache.set( "B", complex ) cache.set( "X", simple ) cache.set( "Y", simple ) // useClones = true : set data of "A". Should not effect "B" // useClones = false : set data of "A". Will effect "B" // because both holding just a refernce to the same data const a = cache.get( "A" ) a.foo = "John?" console.log( "Complex - useClones = " + useClones + " --- a.foo: '" + a.foo + "' != b.foo: '" + cache.get( "B" ).foo + "'" ) // In case of simple values like strings, numbers, booleans useClones will not have any effect let x = cache.get( "X" ) x = "Bing Bong" console.log( "Simple - useClones = " + useClones + " ---- x : '" + x + "' != y: '" + cache.get( "Y" ) + "'" ) } )