Interface WebAssemblyFlags

interface WebAssemblyFlags {
    initTimeout?: number;
    numThreads?: number;
    proxy?: boolean;
    simd?: boolean;
    trace?: boolean;
    wasmBinary?: ArrayBufferLike | Uint8Array;
    wasmPaths?: WasmPrefixOrFilePaths;
}

Properties

initTimeout? numThreads? proxy? simd? trace? wasmBinary? wasmPaths?

Properties

Optional initTimeout

initTimeout?: number

Set or get a number specifying the timeout for initialization of WebAssembly backend, in milliseconds. A zero value indicates no timeout is set.

Default Value

0

Optional numThreads

numThreads?: number

set or get number of thread(s). If omitted or set to 0, number of thread(s) will be determined by system. If set to 1, no worker thread will be spawned.

This setting is available only when WebAssembly multithread feature is available in current context.

Default Value

0

Optional proxy

proxy?: boolean

Set or get a boolean value indicating whether to proxy the execution of main thread to a worker thread.

Default Value

false

Optional simd

simd?: boolean

set or get a boolean value indicating whether to enable SIMD. If set to false, SIMD will be forcely disabled.

This setting is available only when WebAssembly SIMD feature is available in current context.

Default Value

true

Deprecated

This property is deprecated. Since SIMD is supported by all major JavaScript engines, non-SIMD build is no longer provided. This property will be removed in future release.

Optional trace

trace?: boolean

set or get a boolean value indicating whether to enable trace.

Default Value

false

Deprecated

Use env.trace instead. If env.trace is set, this property will be ignored.

Optional wasmBinary

wasmBinary?: ArrayBufferLike | Uint8Array

Set a custom buffer which contains the WebAssembly binary. If this property is set, the wasmPaths property will be ignored.

Optional wasmPaths

wasmPaths?: WasmPrefixOrFilePaths

Set a custom URL prefix to the .wasm/.mjs files, or an object of overrides for both .wasm/.mjs file. The override path should be an absolute path.

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