summaryrefslogtreecommitdiffstats
path: root/lib/utils/promise.js
diff options
context:
space:
mode:
authorSamy Pessé <samypesse@gmail.com>2016-01-28 18:39:44 +0100
committerSamy Pessé <samypesse@gmail.com>2016-01-28 18:39:44 +0100
commit4b465bedea94688a9adfb9136c9d2970d5496274 (patch)
tree7e29cc10d07b86d86239bd1cd59fab7996b412ce /lib/utils/promise.js
parent461ef2c68e9086bd77f0a25d57956ebf60308f7c (diff)
downloadgitbook-4b465bedea94688a9adfb9136c9d2970d5496274.zip
gitbook-4b465bedea94688a9adfb9136c9d2970d5496274.tar.gz
gitbook-4b465bedea94688a9adfb9136c9d2970d5496274.tar.bz2
Fix tests for languages parsing
Diffstat (limited to 'lib/utils/promise.js')
-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;