What are the control statements in JavaScript?
JavaScript has two types of control statements. Conditional and Iterative (Looping) with their particular uses. We learned about conditional statements like IF, IF-ELSE, and SWITCH, along with their respective syntaxes. And for Iterative Statements, we learned about WHILE, DO-WHILE and FOR along with syntaxes.
What is an example of a control structure in JavaScript?
while statement executes a given statement as long as a given expression is true – however, unlike the while statement, this control structure will always execute the statement or block at least once. For example, the code block below will increase the variable c to 10: do { c += 1; } while (c < 10);
What is a conditional statement in JavaScript?
The conditional statements in JavaScript are if, else, else if and switch-case statements. They are used for checking a specific condition and executing the code based on the specified condition.
How do you write conditionals in JavaScript?
In JavaScript we have the following conditional statements:
- Use if to specify a block of code to be executed, if a specified condition is true.
- Use else to specify a block of code to be executed, if the same condition is false.
- Use else if to specify a new condition to test, if the first condition is false.
What are the three types of control structures in JavaScript?
Flow of control through any given function is implemented with three basic types of control structures:
- Sequential: default mode.
- Selection: used for decisions, branching — choosing between 2 or more alternative paths.
- Repetition: used for looping, i.e. repeating a piece of code multiple times in a row.
What are the different control structures explain with an example?
There are three basic types of logic, or flow of control, known as: Sequence logic, or sequential flow. Selection logic, or conditional flow. Iteration logic, or repetitive flow.
How do if statements work in JavaScript?
The if/else statement executes a block of code if a specified condition is true. If the condition is false, another block of code can be executed. The if/else statement is a part of JavaScript’s “Conditional” Statements, which are used to perform different actions based on different conditions.
Can you nest if statements in JavaScript?
Yes, JavaScript allows us to nest if statements within if statements. i.e, we can place an if statement inside another if statement.
How many types of statements are there in JavaScript?
Moving through the eleven statements supported by JavaScript Statements are used in JavaScript to control its program flow. Unlike properties, methods, and events, which are fundamentally tied to the object that owns them, statements are designed to work independently of any JavaScript object.