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{"version":3,"file":"map.js","sourceRoot":"","sources":["../../src/directives/map.ts"],"names":[],"mappings":"AAAA;;;;GAIG;AAEH;;;;;;;;;;;;;;;GAeG;AACH,MAAM,SAAS,CAAC,CAAC,GAAG,CAClB,KAA8B,EAC9B,CAAuC;IAEvC,IAAI,KAAK,KAAK,SAAS,EAAE,CAAC;QACxB,IAAI,CAAC,GAAG,CAAC,CAAC;QACV,KAAK,MAAM,KAAK,IAAI,KAAK,EAAE,CAAC;YAC1B,MAAM,CAAC,CAAC,KAAK,EAAE,CAAC,EAAE,CAAC,CAAC;QACtB,CAAC;IACH,CAAC;AACH,CAAC","sourcesContent":["/**\n * @license\n * Copyright 2021 Google LLC\n * SPDX-License-Identifier: BSD-3-Clause\n */\n\n/**\n * Returns an iterable containing the result of calling `f(value)` on each\n * value in `items`.\n *\n * @example\n *\n * ```ts\n * render() {\n * return html`\n * <ul>\n * ${map(items, (i) => html`<li>${i}</li>`)}\n * </ul>\n * `;\n * }\n * ```\n */\nexport function* map<T>(\n items: Iterable<T> | undefined,\n f: (value: T, index: number) => unknown\n) {\n if (items !== undefined) {\n let i = 0;\n for (const value of items) {\n yield f(value, i++);\n }\n }\n}\n"]}
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