number

The number of elements you want to grow the table by.

The previous length of the table.

If the grow() operation fails for whatever reason, a RangeError is thrown.

The following example creates a new WebAssembly Table instance with an initial size of 2 and a maximum size of 10:

const table = new WebAssembly.Table({ element: "anyfunc", initial: 2, maximum: 10 });

Grow the table by 1 using WebAssembly.grow():

console.log(table.length);   // 2
table.grow(1);
console.log(table.length);   // 3

• WebAssembly overview page
• WebAssembly concepts
• Using the WebAssembly JavaScript API