update

README.md

@@ -81,7 +81,7 @@ import { BPTree } from 'serializable-bptree'
 </script>
 ```
 
-## conceptualization
+## Conceptualization
 
 ### Value comparator
 
@@ -190,7 +190,7 @@ This kind of delay writing should ideally occur within a few milliseconds. If th
 
 #### readHead(): `SerializeStrategyHead`|`null`
 
-This method is called only once when the tree is created. It's a method to restore the saved tree information. If it's the first tree creation and there are no saved tree information, return `null`.
+This method is called only once when the tree is created. It's a method to restore the saved tree information. If it is the initial creation and there is no stored root node, it should return `null`.
 
 This method should return the value stored in the `writeHead` method.
 
@@ -200,7 +200,6 @@ This method is called whenever the head information of the tree changes, typical
 
 As a parameter, it receives the header information of the tree. This value should be serialized and stored. Later, the `readHead` method should convert this serialized value into a json format and return it.
 
-
 ### The Default `ValueComparator` and `SerializeStrategy`
 
 To utilize `serializable-bptree`, you need to implement certain functions. However, a few basic helper classes are provided by default.

src/SerializeStrategy.ts

@@ -39,7 +39,7 @@ export abstract class SerializeStrategy<K, V> {
    * It is called when a tree instance is created.  
    * This method should return the information needed to initialize the tree. This information refers to the values stored in the `writeHead` method.
    * 
-   * If it's the first creation and there are no saved root nodes, return `null`.
+   * If it is the initial creation and there is no stored head, it should return `null`.
    * In this case, the tree is created based on the order specified in the strategy instance constructor parameters.
    */
   abstract readHead(): SerializeStrategyHead|null

test/unit.test.ts

@@ -94,8 +94,6 @@ describe('unit-test', () => {
     tree.insert('h', 'we')
     tree.insert('i', 'use')
 
-    console.log(tree.where({ equal: 'cats' }))
-
     expect(tree.where({ equal: 'cats' })).toEqual([
       { key: 'c', value: 'cats' }
     ])