# reviveBasePRNG > Revive a JSON-serialized pseudorandom number generator (PRNG).
## Usage ```javascript var reviveBasePRNG = require( '@stdlib/random/base/reviver' ); ``` #### reviveBasePRNG( key, value ) Revives a JSON-serialized pseudorandom number generator (PRNG). ```javascript var parseJSON = require( '@stdlib/utils/parse-json' ); var randu = require( '@stdlib/random/base/randu' ); var str = JSON.stringify( randu ); var rand = parseJSON( str, reviveBasePRNG ); // returns ``` For details on the JSON serialization format, see the `.toJSON()` method for, e.g., [`randu()`][@stdlib/random/base/randu].
## Examples ```javascript var randu = require( '@stdlib/random/base/randu' ); var parseJSON = require( '@stdlib/utils/parse-json' ); var reviveBasePRNG = require( '@stdlib/random/base/reviver' ); var rand; var str; var r1; var r2; var i; // Progress the PRNG state... for ( i = 0; i < 100; i++ ) { r1 = randu(); } // Serialize the PRNG as a JSON string: str = JSON.stringify( randu ); // Revive the JSON-serialized PRNG: rand = parseJSON( str, reviveBasePRNG ); if ( rand instanceof Error ) { console.error( rand.message ); } // Generate duplicate sequences... for ( i = 0; i < 100; i++ ) { r1 = randu(); r2 = rand(); console.log( '%d == %d ? %s', r1, r2, ( r1 === r2 ).toString() ); } ```