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SIMD.js has been taken out of active development in TC39 and removed from Stage 3. It is not being pursued by web browsers for implementation anymore. SIMD operations exposed to the web are under active development within WebAssembly, with operations based on the SIMD.js operations.
The SIMD.%type%.valueOf() method performs a type check returns the this value.
In Firefox (SpiderMonkey), this method currently always throws a TypeError as there are no proper value semantics for SIMD types defined yet.
Syntax
SIMD.Float32x4.valueOf() SIMD.Float64x2.valueOf() SIMD.Int8x16.valueOf() SIMD.Int16x8.valueOf() SIMD.Int32x4.valueOf() SIMD.Uint8x16.valueOf() SIMD.Uint16x8.valueOf() SIMD.Uint32x4.valueOf() SIMD.Bool8x16.valueOf() SIMD.Bool16x8.valueOf() SIMD.Bool32x4.valueOf() SIMD.Bool64x2.valueOf()
Return value
The this value of a SIMD object.
Exceptions
A TypeError ("can't convert SIMD value to number") is thrown when attempting to convert SIMD values to Number.
Examples
Using valueOf() with a Float32x4
var a = SIMD.Float32x4(11, 22, 33, 44); a.valueOf(); // TypeError: can't convert SIMD value to number
Specifications
| Specification | Status | Comment |
|---|---|---|
| SIMD The definition of 'SIMDConstructor.prototype.valueOf()' in that specification. |
Draft | Initial definition. |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | No support | Nightly build | No support | No support | No support |
| Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
| Basic support | No support | No support | Nightly build | No support | No support | No support |