docs: Adding documentation for concatAll operator.

src/operator-docs/combination/concatAll.ts

@@ -1,6 +1,67 @@
-import { OperatorDoc } from '../operator.model';
+import { OperatorDoc } from "../operator.model";
 
 export const concatAll: OperatorDoc = {
-  'name': 'concatAll',
-  'operatorType': 'combination'
+  name: "concatAll",
+  operatorType: "combination",
+  signature: "public concatAll(): Observable",
+  parameters: [],
+  marbleUrl: "http://reactivex.io/rxjs/img/concatAll.png",
+  shortDescription: {
+    description:
+      "Converts a higher-order Observable into a first-order Observable by concatenating the inner Observables in order.",
+    extras: [
+      {
+        type: "Tip",
+        text:
+          "Flattens an Observable-of-Observables by putting one inner Observable after the other."
+      }
+    ]
+  },
+  walkthrough: {
+    description: `
+      Joins every Observable emitted by the source (a higher-order Observable), in a serial fashion.
+      It subscribes to each inner Observable only after the previous inner Observable has completed,
+      and merges all of their values into the returned observable.
+    `,
+    extras: [
+      {
+        type: "Warning",
+        text: `
+        If the source Observable emits Observables quickly and endlessly, and the inner Observables it emits generally
+        complete slower than the source emits, you can run into memory issues as the incoming Observables collect in an unbounded buffer.
+      `
+      },
+      {
+        type: "Tip",
+        text: `concatAll is equivalent to mergeAll with concurrency parameter set to 1.`
+      }
+    ]
+  },
+  examples: [
+    {
+      name:
+        "For each click event, tick every second from 0 to 3, with no concurrency",
+      code: `
+        const clicks = Rx.Observable.fromEvent(document, 'click');
+        const higherOrder = clicks.map(ev => Rx.Observable.interval(1000).take(4));
+        const firstOrder = higherOrder.concatAll();
+        firstOrder.subscribe(x => console.log(x));
+      `,
+      externalLink: {
+        platform: "JSBin",
+        url: "http://jsbin.com/guhefeyahi/edit?js,console,output"
+      }
+    }
+  ],
+  relatedOperators: [
+    "combineAll",
+    "concat",
+    "concatMap",
+    "concatMapTo",
+    "exhaust",
+    "mergeAll",
+    "switch",
+    "zipAll"
+  ],
+  additionalResources: []
 };