Default to an objectMode: true instance but allow creating other instances with other defaults

samples/parallelMap.js

@@ -0,0 +1,15 @@
+const strom = require("stromjs").strom();
+
+function sleep(time) {
+    return time > 0 ? new Promise(resolve => setTimeout(resolve, time)) : null;
+}
+
+strom
+    .fromArray([1, 2, 3, 4, 6, 8])
+    .pipe(
+        strom.parallelMap(async d => {
+            await sleep(10000 - d * 1000);
+            return `${d}`;
+        }, 3),
+    )
+    .pipe(process.stdout);

samples/rate.js

@@ -0,0 +1,21 @@
+const strom = require("../dist/index.js");
+
+function sleep(time) {
+    return time > 0 ? new Promise(resolve => setTimeout(resolve, time)) : null;
+}
+
+const rate = strom.rate(2, 1, { behavior: 1 });
+rate.pipe(strom.map(x => console.log(x)));
+async function produce() {
+    rate.write(1);
+    await sleep(500);
+    rate.write(2);
+    await sleep(500);
+    rate.write(3);
+    rate.write(4);
+    rate.write(5);
+    await sleep(500);
+    rate.write(6);
+}
+
+produce();