WebAssembly.validate()
The WebAssembly.validate()
function validates a given typed array of WebAssembly binary
code, returning whether the bytes form a valid wasm module (true
) or not
(false
).
Syntax
WebAssembly.validate(bufferSource)
Parameters
bufferSource
-
A typed array or ArrayBuffer containing WebAssembly binary code to be validated.
Return value
A boolean that specifies whether bufferSource
is valid wasm code
(true
) or not (false
).
Exceptions
If bufferSource
is not a typed array or ArrayBuffer,
a TypeError
is thrown.
Examples
Using validate
The following example (see the validate.html source code,
and see it live too)
fetches a .wasm module and converts it into a typed array.
The validate()
method is then used to check whether the module is valid.
fetch('simple.wasm').then(response =>
response.arrayBuffer()
).then(function(bytes) {
var valid = WebAssembly.validate(bytes);
console.log("The given bytes are "
+ (valid ? "" : "not ") + "a valid wasm module");
});
Specifications
Specification |
---|
WebAssembly JavaScript Interface # dom-webassembly-validate |
Browser compatibility
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