Is it possible to create a fixed length array in javascript?

Question

Is it possible, in Javascript, to create an array whose length is guaranteed to remain the same?

For example, the array A is created with length 2. Subs

Answer 1

Actually to create a fully optimized true c like fixed array in js on most modern browsers (including IE 11) you could use: TypedArray or ArrayBuffer like so:

var int16 = new Int16Array(1); // or Float32Array(2)
int16[0] = 42;
console.log(int16[0]); // 42
int16[1] = 44;
console.log(int16[1]); // undefined

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray