This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.
The grow() prototype method of the WebAssembly.Table object increases the size of the Table instance by a specified number of elements.
Syntax
table.grow(number);
Parameters
- number
- The number of elements you want to grow the table by.
Return value
The previous length of the table.
Exceptions
If the grow() operation fails for whatever reason, a RangeError is thrown.
Examples
The following example creates a new WebAssembly Table instance with an initial size of 2 and a maximum size of 10.
var table = new WebAssembly.Table({ element: "anyfunc", initial: 2, maximum: 10 });
You can then grow the table by 1 with the following:
console.log(table.length); // "2" console.log(table.grow(1)); // "2" console.log(table.length); // "3"
Specifications
| Specification | Status | Comment |
|---|---|---|
| Web Assembly JavaScript API The definition of 'grow()' in that specification. |
Draft | Initial draft definition. |
Browser compatibility
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|---|
| Basic support | 57 | 15[2] | 52 (52)[1] | No support | 44 | 11 |
| Feature | Chrome for Android | Android Webview | Edge Mobile | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|---|
| Basic support | 57 | 57 | No support | 52.0 (52)[1] | No support | No support | 11 |
[1] WebAssembly is enabled in Firefox 52+, although disabled in the Firefox 52 Extended Support Release (ESR.)
[2] Currently supported behind the “Experimental JavaScript Features” flag. See this blog post for more details.