reorganizing

Chapter 05/Code Samples/ch5_break_continue_nested.js

@@ -0,0 +1,108 @@
+for (let i = 0; i < 10; i++) {
+  console.log(i);
+  if (i === 4) {
+    break;
+  }
+}
+
+for (let i = 0; i < cars.length; i++) {
+  if (cars[i].year >= 2020) {
+    if (cars[i].color === "black") {
+      console.log("I have found my new car and can stop looking:", car[i]);
+      break;
+    }
+  }
+}
+
+let superLongArray = [];
+while (true) {
+  if (superLongArray[0] != 42 && superLongArray.length > 0) {
+    superLongArray.shift();
+  } else {
+    console.log("Found 42!");
+    break;
+  }
+}
+
+let notFound = true;
+while (superLongArray.length > 0 && notFound) {
+  if (superLongArray[0] != 42) {
+    superLongArray.shift();
+  } else {
+    console.log("Found 42!");
+    notFound = false;
+  }
+}
+
+for (let car of cars) {
+  if (car.color !== "black") {
+    continue;
+  }
+  if (car.year >= 2020) {
+    console.log("sure, let's get this one:", car);
+  }
+}
+// let's only log the odd numbers to the console
+let i = 1;
+while (i < 50) {
+  if (i % 2 === 0) {
+    continue;
+  }
+  console.log(i);
+  i++;
+}
+
+let i = 1;
+while (i < 50) {
+  i++;
+  if ((i - 1) % 2 === 0) {
+    continue;
+  }
+  console.log(i - 1);
+}
+
+for (let i = 1; i < 50; i = i + 2) {
+  console.log(i);
+}
+
+let groups = [
+  ["martin", "daniel", "keith"],
+  ["margot", "marina", "ali"],
+  ["helen", "jonah", "sambikos"],
+];
+
+//let's find a group with two names starting with an m
+for (let i = 0; i < groups.length; i++) {
+  let matches = 0;
+
+  for (let j = 0; j < groups[i].length; j++) {
+    if (groups[i][j].startsWith("m")) {
+      matches++;
+    } else {
+      continue;
+    }
+    if (matches === 2) {
+      console.log("Found a group with two names starting with an m:");
+      console.log(groups[i]);
+      break;
+    }
+  }
+}
+
+for (let group of groups) {
+  for (let member of group) {
+    if (member.startsWith("m")) {
+      console.log("found one starting with m:", member);
+      break;
+    }
+  }
+}
+
+outer: for (let group of groups) {
+  inner: for (let member of group) {
+    if (member.startsWith("m")) {
+      console.log("found one starting with m:", member);
+      break outer;
+    }
+  }
+}