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

Properties

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

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

proxy?: boolean

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

Default Value

false

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.

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.

Default Value

true

trace?: boolean

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

Deprecated

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

Default Value

false

wasmBinary?: ArrayBufferLike | Uint8Array

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

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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