Put information about numbers

GoberInfinity · GoberInfinity · commit 01dba59ad030 · 2020-12-13T15:34:53.000-06:00
diff --git a/DataStructures/Array/Info.md b/DataStructures/Array/Info.md
@@ -0,0 +1,6 @@
+# Array
+
+## Concepts
+
+**Capacity**: Number of elements that the array can hold
+**Length**: Current number of elements in the array
diff --git a/Interview/Miscellaneous.md b/Interview/Miscellaneous.md
@@ -0,0 +1,7 @@
+
+# Numbers 
+## Get the last digit of a number
+last_digit = number % 10
+
+## Delete the last digit of a number
+number //= 10
