Create 1624-largest-substring-between-two-equal-characters.js

Author: everthis

1624-largest-substring-between-two-equal-characters.js

@@ -0,0 +1,18 @@
+/**
+ * @param {string} s
+ * @return {number}
+ */
+const maxLengthBetweenEqualCharacters = function(s) {
+  const m = {}
+  if(s ==null || s.length <= 1) return -1
+  let res  = -1
+  for(let i = 0, len = s.length; i< len;i++) {
+    if(m[s[i]] != null) {
+      res = Math.max(res, i - m[s[i]] - 1)
+    } else {
+      m[s[i]] = i
+    }
+    
+  }
+  return res
+};