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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 static SIMD.%type%.swizzle() method creates a new SIMD data type instance with the lane values swizzled (re-ordered).


SIMD.Float32x4.swizzle(t, s0, s1, s2, s3)
SIMD.Float64x2.swizzle(t, s0, s1)

SIMD.Int16x8.swizzle(t, s0, s1, s2, s3, s4, s5, s6, s7)
SIMD.Int32x4.swizzle(t, s0, s1, s2, s3)

SIMD.Uint16x8.swizzle(t, s0, s1, s2, s3, s4, s5, s6, s7)
SIMD.Uint32x4.swizzle(t, s0, s1, s2, s3)


An instance of a SIMD type to be swizzled / re-ordered.
index in t for lanes s0-s15.

Return value

A new SIMD data type with the lane values swizzled (re-ordered).


The static SIMD.%type%.swizzle() method can be used to re-order a SIMD data type.


Swizzling a Float32x4

var t = SIMD.Float32x4(1, 2, 3, 4);

SIMD.Float32x4.swizzle(t, 1, 2, 0, 3);
// Float32x4[2,3,1,4]


Specification Status Comment
The definition of 'SIMD.swizzle' 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

See also

Document Tags and Contributors

 Contributors to this page: eduardoboucas, fscholz
 Last updated by: eduardoboucas,