Fixed #1187 - Constants for Toast severities

src/components/api/Api.js

@@ -2,5 +2,6 @@ import FilterMatchMode from './FilterMatchMode';
 import FilterOperator from './FilterOperator';
 import FilterService from './FilterService';
 import PrimeIcons from './PrimeIcons';
+import ToastSeverity from './ToastSeverity';
 
-export {FilterMatchMode,FilterOperator,FilterService,PrimeIcons};
+export {FilterMatchMode,FilterOperator,FilterService,PrimeIcons,ToastSeverity};

src/components/api/ToastSeverity.js

@@ -0,0 +1,8 @@
+const ToastSeverities = {
+    INFO: 'info',
+    WARN: 'warn',
+    ERROR: 'error',
+    SUCCESS: 'success'
+};
+
+export default ToastSeverities;

src/views/toast/ToastDoc.vue

@@ -219,6 +219,21 @@ this.$toast.add({severity:'success', summary: 'Specific Message', group: 'mykey'
 <pre v-code><code>
 &lt;Toast :breakpoints="&#123;'920px': &#123;width: '100%', right: '0', left: '0'&#125;&#125;"&gt;&lt;/Toast&gt;
 
+</code></pre>
+
+        <h5>Constants</h5>
+        <p>ToastSeverity constants API is provided to easily choose a severity of the message with typescript.</p>
+<pre v-code.script><code>
+import {ToastSeverity} from 'primevue/api';
+
+export default {
+    methods: {
+        showInfo() {
+            this.$toast.add({severity: ToastSeverity.INFO, summary: 'Info Message', detail:'Message Content', life: 3000});
+        }
+    }
+}
+
 </code></pre>
 
 		<h5>Properties</h5>