Break in TypeScript

In TypeScript, the break statement is used to exit a loop or switch statement before its natural end. When break is encountered, the control is transferred to the statement immediately following the loop or switch statement.

Here are some examples of how to use break in TypeScript:

1. Using break in a for loop:

for (let i=1; i<=10; i++) {
   if (i === 6) {
      break;
   }
   console.log(i);
}

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Explanation: Here, the for loop runs from 1 to 10. However, when the value of i is equal to 6, the break statement is executed, causing the loop to exit before it reaches the end.

2. Using break in a while loop:

let i = 1;
while (i <= 10) {
   if (i === 6) {
      break;
   }
   console.log(i);
   i++;
}

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Explanation: This code is similar to the previous example, but it uses a while loop instead of a for loop. The break statement works in the same way, causing the loop to exit when i is equal to 6.

3. Using break in a switch statement:

let day = "Wednesday";
switch (day) {
   case "Monday":
      console.log("Today is Monday");
      break;
   case "Tuesday":
      console.log("Today is Tuesday");
      break;
   case "Wednesday":
      console.log("Today is Wednesday");
      break;
   default:
      console.log("Unknown day");
}

Today is Wednesday

Explanation: This code uses a switch statement to check the value of the day variable. When day is equal to "Wednesday", the corresponding case is executed, followed by the break statement. This exits the switch statement and prevents the code from executing the following cases.