更新

2026-08-11 17:41:36 +08:00
parent cfe4c82c90
commit 03fe4ddf9d
18771 changed files with 3617239 additions and 0 deletions
@@ -0,0 +1,14 @@
+var safeCb = require('./safeCb');
+exports = function(arr, predicate, ctx, dir) {
+    dir = dir || 1;
+    predicate = safeCb(predicate, ctx);
+    var len = arr.length;
+    var i = dir > 0 ? 0 : len - 1;
+    while (i >= 0 && i < len) {
+        if (predicate(arr[i], i, arr)) return i;
+        i += dir;
+    }
+    return -1;
+};
+
+module.exports = exports;