JavaScript Conditional Statements
A JavaScript conditional statements are a control flow statement that allows you to execute a block of code only if a specified condition is true. Conditional statements are used to make decisions in your code, and they allow you to control the flow of execution based on whether certain conditions are met.
There are several types of conditional statements in JavaScript, including:
if statement:
Executes a block of code if a specified condition is true.
Syntax:
if (condition) {
// Code to be executed if the condition is true
}
if...else statement:
Executes a block of code if a specified condition is true, and another block of code if the condition is false.
Syntax:
if (condition) {
// Code to be executed if the condition is true
} else {
// Code to be executed if the condition is false
}
if...else if...else statement:
Executes a different block of code for each condition that is specified.
Syntax:
if (condition1) {
// Code to be executed if condition1 is true
} else if (condition2) {
// Code to be executed if condition2 is true
} else if (condition3) {
// Code to be executed if condition3 is true
} else {
// Code to be executed if all conditions are false
}
switch statement:
Selects one of many blocks of code to be executed.
Syntax:
switch (expression) {
case value1:
// Code to be executed if expression matches value1
break;
case value2:
// Code to be executed if expression matches value2
break;
...
default:
// Code to be executed if expression doesn't match any value
break;
}
Each JavaScript Conditional Statements have a specific syntax and use case, but they all serve the same basic purpose: to make decisions in your code based on whether certain conditions are met.
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