Release. Bump version number

Author: bryaningl3

docs/_coverpage.md

@@ -1,4 +1,4 @@
-# Barchart Market Data SDK <small>JavaScript 5.7.1</small>
+# Barchart Market Data SDK <small>JavaScript 5.7.2</small>
 
 > Inject real-time market data into your JavaScript applications
 

example/browser/example.js

@@ -5048,7 +5048,7 @@ module.exports = (() => {
   'use strict';
 
   return {
-    version: '5.7.1'
+    version: '5.7.2'
   };
 })();
 
@@ -7180,7 +7180,9 @@ module.exports = (() => {
       const putCallCharacter = getPutCallCharacter(definition.option_type);
 
       if (definition.root.length < 3) {
-        const putCallCharacterCode = putCallCharacter.charCodeAt(0);
+        const putCallCharacterCode = putCallCharacter.charCodeAt(0); // 2021/01/02, BRI. Per Tom, symbols (for the same instrument) change each year.
+        // The letter D, E, F are calls (+1, +2, +3 years, respectively).
+
         converted = `${definition.root}${definition.month}${definition.strike}${String.fromCharCode(putCallCharacterCode + definition.year - getCurrentYear())}`;
       } else {
         converted = `${definition.root}${definition.month}${getYearDigits(definition.year, 1)}|${definition.strike}${putCallCharacter}`;
@@ -8137,6 +8139,26 @@ module.exports = (() => {
     constructor(code) {
       super(code, code);
     }
+    /**
+     * Attempts to determine if daylight savings time is in effect.
+     *
+     * @public
+     * @param {Number=} timestamp - The moment at which the daylight savings time is checked, otherwise now.
+     * @returns {Number}
+     */
+
+
+    getIsDaylightSavingsTime(timestamp) {
+      let m;
+
+      if (is.number(timestamp)) {
+        m = moment(timestamp);
+      } else {
+        m = moment();
+      }
+
+      return m.tz(this.code).isDST();
+    }
     /**
      * Calculates and returns the timezone's offset from UTC.
      *
@@ -9258,7 +9280,7 @@ module.exports = (() => {
     },
 
     /**
-     * Attempts to guess the lock timezone.
+     * Attempts to guess the timezone of the current computer.
      *
      * @public
      * @static

lib/meta.js

@@ -2,6 +2,6 @@ module.exports = (() => {
 	'use strict';
 
 	return {
-		version: '5.7.1'
+		version: '5.7.2'
 	};
 })();

package.json

@@ -1,6 +1,6 @@
 {
 	"name": "@barchart/marketdata-api-js",
-	"version": "5.7.1",
+	"version": "5.7.2",
 	"description": "SDK for streaming market data from Barchart.com",
 	"author": {
 		"name": "Eero Pikat",

test/dist/barchart-marketdata-api-tests-5.js

@@ -3113,7 +3113,9 @@ module.exports = (() => {
       const putCallCharacter = getPutCallCharacter(definition.option_type);
 
       if (definition.root.length < 3) {
-        const putCallCharacterCode = putCallCharacter.charCodeAt(0);
+        const putCallCharacterCode = putCallCharacter.charCodeAt(0); // 2021/01/02, BRI. Per Tom, symbols (for the same instrument) change each year.
+        // The letter D, E, F are calls (+1, +2, +3 years, respectively).
+
         converted = `${definition.root}${definition.month}${definition.strike}${String.fromCharCode(putCallCharacterCode + definition.year - getCurrentYear())}`;
       } else {
         converted = `${definition.root}${definition.month}${getYearDigits(definition.year, 1)}|${definition.strike}${putCallCharacter}`;
@@ -18193,10 +18195,10 @@ describe('When getting a producer symbol', () => {
     expect(SymbolParser.getProducerSymbol('ZWK465C')).toEqual('ZWK465C');
   });
   it('ZWK29465C should map to ZWK465L', () => {
-    expect(SymbolParser.getProducerSymbol('ZWK29465C')).toEqual('ZWK465L');
+    expect(SymbolParser.getProducerSymbol('ZWK29465C')).toEqual('ZWK465K');
   });
   it('ZWK9|465P should map to ZWK465Y', () => {
-    expect(SymbolParser.getProducerSymbol('ZWK9|465P')).toEqual('ZWK465Y');
+    expect(SymbolParser.getProducerSymbol('ZWK9|465P')).toEqual('ZWK465X');
   });
   it('BZ6N8|25C should map to BZ6N8|25C', () => {
     expect(SymbolParser.getProducerSymbol('BZ6N8|25C')).toEqual('BZ6N8|25C');