Control Flow in Jav...
By mahesh1439
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  • Non-Fiction
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  • hyderabad
  • web

Description

Control flow in JavaScript is a fundamental concept that dictates the order in which statements are executed within a script. It enables developers to control the flow of program execution based on conditions and loops. Understanding control flow is essential for writing efficient and logic-driven JavaScript code. Conditional Statements Conditional statements allow developers to execute code based on specific conditions. JavaScript provides several types of conditional statements: if statement: This statement evaluates a condition and executes a block of code if the condition is true. For example: if (condition) { // Code block to execute if condition is true } if...else statement: It executes one block of code if a condition is true and another block if the condition is false. Example: if (condition) { // Code block to execute if condition is true } else { // Code block to execute if condition is false } else if statement: This statement allows for multiple conditions to be checked sequentially. Example: if (condition1) { // Code block to execute if condition1 is true } else if (condition2) { // Code block to execute if condition2 is true } else { // Code block to execute if neither condition1 nor condition2 is true } switch statement: It evaluates an expression and executes code based on a matching case label. Example: switch (expression) { case value1: // Code block to execute if expression equals value1 break; case value2: // Code block to execute if expression equals value2 break; default: // Code block to execute if expression doesn't match any case } Loops Loops are used to execute a block of code repeatedly until a specified condition is met. JavaScript supports different types of loops: for loop: Executes a block of code a specified number of times. Example: for (initialization; condition; iteration) { // Code block to execute

Control Flow in JavaScript

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Control F...
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