reproducable out-of-memory errors using 'array'

[ollixx]

hi there,

the following code snippets result in a hard crash and should probably be hardened to throw an error instead:

let jBinary = require("jbinary");
let buf = [0x00, 0x03, 0x04, 0x05, 0x06, 0x07];
let b = new jBinary(buf);
// works:
console.log(b.read(['array', 2]));
// crash:
console.log(b.read(['array', undefined]));

let jBinary = require("jbinary");
let buf = [0x00, 0x03, 0x04, 0x05, 0x06, 0x07];
let b = new jBinary(buf);
// crash:
console.log(b.read('array', <any number here>));

on my system (node-red 2.2.3, node.js v14.18.2, in docker container), I see this error:

<--- Last few GCs --->

[17:0x564b6caeeaa0]  1558415 ms: Mark-sweep 1077.3 (1097.0) -> 837.9 (857.2) MB, 385.8 / 0.0 ms  (+ 1.8 ms in 2 steps since start of marking, biggest step 1.2 ms, walltime since start of marking 910 ms) (average mu = 0.999, current mu = 0.629) allocation [17:0x564b6caeeaa0]  1559490 ms: Mark-sweep 1411.7 (1431.0) -> 603.7 (621.5) MB, 747.3 / 0.0 ms  (average mu = 0.995, current mu = 0.305) allocation failure scavenge might not succeed

<--- JS stacktrace --->

FATAL ERROR: invalid array length Allocation failed - JavaScript heap out of memory