add rectangle-overlap script

Author: everthis

836-rectangle-overlap.js

@@ -0,0 +1,18 @@
+/**
+ * @param {number[]} rec1
+ * @param {number[]} rec2
+ * @return {boolean}
+ */
+const isRectangleOverlap = function(rec1, rec2) {
+    return !(chkOverlap(rec1, rec2) === false || chkOverlap(rec2, rec1) === false)
+};
+function chkOverlap(r1, r2) {
+    if ( (r1[2] <= r2[0] || r1[3] <= r2[1]) ) {
+        return false
+    } else {
+        return true
+    }
+}
+
+console.log(isRectangleOverlap([0,0,2,2], [1,1,3,3]))
+console.log(isRectangleOverlap([0,0,1,1], [1,0,2,1]))