SIMD.%type%.lessThan()
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%.lessThan()
method returns a selection mask with values depending on a less-than comparison (a < b
) in each lane.
Syntax
SIMD.Float32x4.lessThan(a, b) SIMD.Float64x2.lessThan(a, b) SIMD.Int8x16.lessThan(a, b) SIMD.Int16x8.lessThan(a, b) SIMD.Int32x4.lessThan(a, b) SIMD.Uint8x16.lessThan(a, b) SIMD.Uint16x8.lessThan(a, b) SIMD.Uint32x4.lessThan(a, b)
Parameters
- a
- An instance of a SIMD type.
b
- Another instance of a SIMD type.
Return value
A selection mask (of type Bool64x2
, Bool32x4
, Bool16x8
or Bool8x16
depending on the size). The lane values of the mask are either true
or false
depending on the result of a < b
.
Description
The SIMD.%type%.lessThan
method is one of the SIMD comparison operations and does not give you back the values of the less-than comparison of two instances directly. Instead, a selection mask with Boolean values is returned.
Examples
Selecting the smallest lane values from two vectors
In this example, two SIMD Float32x4
data types are compared to find the smallest value for each lane and a selection mask gets created based on the result. This selection mask is then used to select the smallest values of both vectors into a new Float32x4
vector.
var a = SIMD.Float32x4(1, 2, 3, 11); var b = SIMD.Float32x4(1, 4, 7, 9); var mask = SIMD.Float32x4.lessThan(a,b); // Bool32x4[false, true, true, false] var result = SIMD.Float32x4.select(mask, a, b); // Float32x4[1, 2, 3, 9]
Specifications
Specification | Status | Comment |
---|---|---|
SIMD The definition of 'SIMD' 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
License
© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/javascript/reference/global_objects/simd/lessthan