expose utils items

package.json

@@ -59,5 +59,5 @@
     "test:watch": "jest --updateSnapshot --watchAll"
   },
   "types": "dist/index.d.ts",
-  "version": "0.5.2"
+  "version": "0.6.0"
 }

src/index.ts

@@ -1,4 +1,6 @@
 export type {
+    ClosestKeyDesc,
+    Compared,
     EqualityFn, 
     KeyType,
     Node,
@@ -8,4 +10,23 @@ export type {
     TrieableNode,
     TrieableNodeKeyMapping
 } from './main';
+
+import {
+    bSearch,
+    getDescriptor,
+    isIterable,
+    lessThanValue,
+    sameValueZero,
+    toArray
+} from './main';
+
+export const util = {
+    bSearch,
+    defaultEqMatcher: sameValueZero,
+    defaultLtMatcher: lessThanValue,
+    getTypeName: getDescriptor,
+    isIterable,
+    toArray
+};
+
 export { default as default } from './main';

src/main.ts

@@ -12,7 +12,7 @@ export enum Compared {
     LT = -1
 };
 
-interface ClosestKeyDesc {
+export interface ClosestKeyDesc {
     desc : Compared;
     index : number;
 };
@@ -61,7 +61,7 @@ const typeMapping = {
     undefined: undefined
 };
 
-const getDescriptor : ( ( obj: any ) => string ) = (() => {
+export const getDescriptor : ( ( obj: any ) => string ) = (() => {
     const t = Object.prototype.toString;
     return obj => {
         const desc = t.call( obj );
@@ -70,7 +70,7 @@ const getDescriptor : ( ( obj: any ) => string ) = (() => {
 })();
 
 /** @throws { TypeError } */
-const lessThanValue : EqualityFn = ( a, b ) => {
+export const lessThanValue : EqualityFn = ( a, b ) => {
     const typeA = typeof a;
     const typeB = typeof b;
     if( typeA === 'undefined' || a === null ) {
@@ -89,7 +89,7 @@ const lessThanValue : EqualityFn = ( a, b ) => {
 };
 
 /** Credit: curtesy of the lodash.eq() imnplementation */
-const sameValueZero : EqualityFn = ( a, b ) => a === b || ( a !== a && b !== b );
+export const sameValueZero : EqualityFn = ( a, b ) => a === b || ( a !== a && b !== b );
 
 const TRIE_DESC = 'webKrafters.Trie';
 
@@ -785,7 +785,7 @@ function stringHash( key : string ) {
     }
     return hash;
 };
-function bSearch<T = unknown>(
+export function bSearch<T = unknown>(
     needle : T,
     haystack : Array<T>,
     compare : ( a, b ) => Compared = defaultComparator
@@ -807,14 +807,14 @@ function bSearch<T = unknown>(
     return res;
 }
 function defaultComparator ( a, b ){ return a < b ? Compared.LT : a > b ? Compared.GT : Compared.EQ }
-function isIterable( sequence ) {
+export function isIterable( sequence ) {
     if( sequence === null ) { return false }
     if( typeof sequence[ Symbol.iterator ] === 'function' ) { return true }
     /* pre-es6 support */
     const type = getDescriptor( sequence );
     return type === 'Array' || type === 'String';
 }
 
-function toArray<T>( sequence : Iterable<T> ) : Array<T> {
+export function toArray<T>( sequence : Iterable<T> ) : Array<T> {
     return Array.isArray( sequence ) ? sequence : [ ...sequence ];
 }