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RangeError: invalid array length

JavaScript "Invalid array length" ( Array ArrayBuffer Array.length )

Array 2GB-1 (2^32-1) ArrayBuffer 32 2GB-1 (2^32-1) Firefox 89 ArrayBuffer 64 8GB (2^33)

: Array ArrayBuffer ()

js
RangeError: invalid array length (Firefox)
RangeError: Invalid array length (Chromium-based)
RangeError: Array buffer allocation failed (Chromium-based)

RangeError

Array Array

length

js
new Array(Math.pow(2, 40));
new Array(-1);
new ArrayBuffer(Math.pow(2, 32)); //32 
new ArrayBuffer(-1);

let a = [];
a.length = a.length - 1; // length  -1 

let b = new Array(Math.pow(2, 32) - 1);
b.length = b.length + 1; // length  2^32

js
[Math.pow(2, 40)]; // [ 1099511627776 ]
[-1]; // [ -1 ]
new ArrayBuffer(Math.pow(2, 32) - 1);
new ArrayBuffer(Math.pow(2, 33)); // 64  Firefox 89 
new ArrayBuffer(0);

let a = [];
a.length = Math.max(0, a.length - 1);

let b = new Array(Math.pow(2, 32) - 1);
b.length = Math.min(0xffffffff, b.length + 1);

// 0xffffffff  2^32 - 1  16 
// (-1 >>> 0)

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