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-rw-r--r--lib/utils/promise.js12
1 files changed, 12 insertions, 0 deletions
diff --git a/lib/utils/promise.js b/lib/utils/promise.js
index c25b349..82f4a60 100644
--- a/lib/utils/promise.js
+++ b/lib/utils/promise.js
@@ -21,6 +21,18 @@ function serie(arr, iter, base) {
}, []);
}
+// Iter over an array and return first result (not null)
+function some(arr, iter) {
+ return _.reduce(arr, function(prev, elem, i) {
+ return prev.then(function(val) {
+ if (val) return val;
+
+ return iter(elem, i);
+ });
+ }, Q());
+}
+
module.exports = Q;
module.exports.reduce = reduce;
module.exports.serie = serie;
+module.exports.some = some;