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Diffstat (limited to 'lib/internal/createTester.js')
-rw-r--r-- | lib/internal/createTester.js | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/lib/internal/createTester.js b/lib/internal/createTester.js new file mode 100644 index 0000000..0e9e750 --- /dev/null +++ b/lib/internal/createTester.js @@ -0,0 +1,37 @@ +'use strict'; + +export default function _createTester(eachfn, check, getResult) { + return function(arr, limit, iterator, cb) { + function done(err) { + if (cb) { + if (err) { + cb(err); + } else { + cb(null, getResult(false, void 0)); + } + } + } + function iteratee(x, _, callback) { + if (!cb) return callback(); + iterator(x, function (err, v) { + if (cb) { + if (err) { + cb(err); + cb = iterator = false; + } else if (check(v)) { + cb(null, getResult(true, x)); + cb = iterator = false; + } + } + callback(); + }); + } + if (arguments.length > 3) { + eachfn(arr, limit, iteratee, done); + } else { + cb = iterator; + iterator = limit; + eachfn(arr, iteratee, done); + } + }; +} |