Deno.Buffer.prototype.grow - Deno documentation
method Deno.Buffer.prototype.grow
Buffer.prototype.grow(n: number): void

Grows the buffer's capacity, if necessary, to guarantee space for another n bytes. After .grow(n), at least n bytes can be written to the buffer without another allocation. If n is negative, .grow() will throw. If the buffer can't grow it will throw an error.

Based on Go Lang's Buffer.Grow.

Parameters

n: number

Return Type

void