Target ES5 builds

Author: sonirico

package.json

@@ -16,7 +16,7 @@
     "prepare": "npm run build",
     "prepublishOnly": "npm test && npm run lint",
     "preversion": "npm run lint",
-    "test": "rm -rf dist/ && npm run build && TZ='UTC' npx mocha test",
+    "test": "rm -rf lib/ && npm run build && TZ='UTC' npx mocha test",
     "version": "npm run format && git add -A src"
   },
   "repository": {

src/models/operations.ts

@@ -1,16 +1,16 @@
 import * as dateFn from 'date-fns';
-import { Snap } from '../constants';
+import { Sign, Snap } from '../constants';
 
 export const operations: any = {
-  '+': {
+  [Sign.plus]: {
     s: dateFn.addSeconds,
     m: dateFn.addMinutes,
     h: dateFn.addHours,
     d: dateFn.addDays,
     w: dateFn.addWeeks,
     M: dateFn.addMonths,
   },
-  '-': {
+  [Sign.minus]: {
     s: dateFn.subSeconds,
     m: dateFn.subMinutes,
     h: dateFn.subHours,

src/parser/parsetoken.ts

@@ -2,6 +2,8 @@ import { Sign, Snap, NOW } from '../constants';
 import { Token } from '../models/Token';
 import { TokenModifier } from '../models/TokenModifier';
 
+export const includes = (target: string, searchString: string) => target.indexOf(searchString) > -1;
+
 export function parseToken(token: string = NOW): Token {
   const regex = /^(?:now)?(?:([+\-])(?:(\d+)?([smhdwM])))*(?:[@\/]([smhdwM]|(?:bw)))?$/g;
   const matches = regex.exec(token);
@@ -12,7 +14,7 @@ export function parseToken(token: string = NOW): Token {
     throw error;
   }
 
-  if (token.includes('-') || token.includes('+')) {
+  if (includes(token, Sign.minus) || includes(token, Sign.plus)) {
     const modifierRegex = /([+\-])(\d+)?([smhdwM])?/g;
     let modifierMatches = modifierRegex.exec(token);
 
@@ -35,8 +37,8 @@ export function parseToken(token: string = NOW): Token {
     }
   }
 
-  const snapFrom = token.includes(Snap.beginning);
-  const snapTo = token.includes(Snap.end);
+  const snapFrom = includes(token, Snap.beginning);
+  const snapTo = includes(token, Snap.end);
 
   if (snapFrom || snapTo) {
     const snapRegex = /[\/@]([smhdwM]|(?:bw))/;

tsconfig.json

@@ -1,6 +1,6 @@
 {
   "compilerOptions": {
-    "target": "es6",
+    "target": "es5",
     "module": "commonjs",
     "declaration": true,
     "outDir": "./lib",