Practicing spread operator, promise and regex.

ecmascript/src/es9/index.js

@@ -0,0 +1,56 @@
+//Spread Operator
+
+const obj = {
+  name: "Eliab",
+  age: 24,
+  country: "Nicaragua"
+}
+
+let {name, ...all} = obj;
+console.log(`Name: ${name}`);
+console.log(`Additional Information:`, all);
+
+let {country, ...otherInfo} = obj;
+console.log(`Country: ${country}`);
+console.log(`Name and age:`, otherInfo);
+
+const obj1 = {
+  name: "Eliab",
+  age: 24
+}
+
+const obj2 = {
+  ...obj1,
+  country: "Nicaragua"
+}
+
+console.log(obj2);
+
+const helloWorld = () => {
+  return new Promise((resolve, reject) => {
+    true
+    ? setTimeout(() => {
+      resolve("Hello World!");
+    },3000)
+    : reject(new Error("Test Error"));
+  });
+}
+
+helloWorld()
+  .then((result) => {
+    console.log("Result: ",result);
+  })
+  .catch((err) => {
+    console.log("Error: ",err);
+  })
+  .finally(() => {
+    console.log("¡Finalizó!");
+  });
+
+const regexData = /([0-9]{4})-([0-9]{2})-([0-9]{2})/;
+const match = regexData.exec('2018-04-28');
+const year = match[1];
+const month = match[2];
+const day = match[3];
+console.log(match);
+console.log('Date:', year, month, day);