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Diffstat (limited to 'node_modules/rxjs/dist/esm/internal/operators/first.js')
| -rw-r--r-- | node_modules/rxjs/dist/esm/internal/operators/first.js | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/node_modules/rxjs/dist/esm/internal/operators/first.js b/node_modules/rxjs/dist/esm/internal/operators/first.js new file mode 100644 index 0000000..406bba0 --- /dev/null +++ b/node_modules/rxjs/dist/esm/internal/operators/first.js @@ -0,0 +1,11 @@ +import { EmptyError } from '../util/EmptyError'; +import { filter } from './filter'; +import { take } from './take'; +import { defaultIfEmpty } from './defaultIfEmpty'; +import { throwIfEmpty } from './throwIfEmpty'; +import { identity } from '../util/identity'; +export function first(predicate, defaultValue) { + const hasDefaultValue = arguments.length >= 2; + return (source) => source.pipe(predicate ? filter((v, i) => predicate(v, i, source)) : identity, take(1), hasDefaultValue ? defaultIfEmpty(defaultValue) : throwIfEmpty(() => new EmptyError())); +} +//# sourceMappingURL=first.js.map
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