| 1 | {"version":3,"sources":["asynciterable/includes.ts"],"names":[],"mappings":"AAAA,OAAO,EAAE,QAAQ,EAAE,MAAM,kBAAkB,CAAC;AAC5C,OAAO,EAAE,aAAa,EAAE,MAAM,uBAAuB,CAAC;AACtD,OAAO,EAAE,cAAc,EAAE,MAAM,eAAe,CAAC;AAE/C;;;;;;;;;;GAUG;AACH,MAAM,CAAC,KAAK,UAAU,QAAQ,CAC5B,MAAwB,EACxB,WAAc,EACd,YAAoB,CAAC,EACrB,MAAoB;IAEpB,cAAc,CAAC,MAAM,CAAC,CAAC;IACvB,IAAI,OAAO,GAAG,SAAS,CAAC;IACxB,IAAI,CAAC,GAAG,CAAC,CAAC;IACV,IAAI,IAAI,CAAC,GAAG,CAAC,OAAO,CAAC,EAAE;QACrB,OAAO,GAAG,CAAC,CAAC;KACb;IACD,IAAI,KAAK,EAAE,MAAM,IAAI,IAAI,aAAa,CAAC,MAAM,EAAE,MAAM,CAAC,EAAE;QACtD,IAAI,CAAC,EAAE,GAAG,OAAO,IAAI,QAAQ,CAAC,IAAI,EAAE,WAAW,CAAC,EAAE;YAChD,OAAO,IAAI,CAAC;SACb;KACF;IACD,OAAO,KAAK,CAAC;AACf,CAAC","file":"includes.js","sourcesContent":["import { comparer } from '../util/comparer';\nimport { wrapWithAbort } from './operators/withabort';\nimport { throwIfAborted } from '../aborterror';\n\n/**\n * Determines whether an async-itreable includes a certain value among its entries, returning true or false as appropriate.\n *\n * @export\n * @template T The type of elements in the source sequence.\n * @param {AsyncIterable<T>} source The source sequence to search for the item.\n * @param {T} valueToFind The value to search for.\n * @param {number} [fromIndex=0] The position in this async-iterable at which to begin searching for valueToFind.\n * @param {AbortSignal} [signal] An optional abort signal to cancel the operation at any time.\n * @returns {Promise<boolean>} Returns a promise containing true if the value valueToFind is found within the async-iterable.\n */\nexport async function includes<T>(\n source: AsyncIterable<T>,\n valueToFind: T,\n fromIndex: number = 0,\n signal?: AbortSignal\n): Promise<boolean> {\n throwIfAborted(signal);\n let fromIdx = fromIndex;\n let i = 0;\n if (Math.abs(fromIdx)) {\n fromIdx = 0;\n }\n for await (const item of wrapWithAbort(source, signal)) {\n if (i++ > fromIdx && comparer(item, valueToFind)) {\n return true;\n }\n }\n return false;\n}\n"]} |