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JavaScript if/else Statement - W3Schools
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.
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How to use OR condition in a JavaScript IF statement?
Use the logical "OR" operator, that is ||. Note that if you use string comparisons in the conditions, you need to perform a comparison for each condition: If you only do it in the first one, then it will always return true: The official ECMAScript documentation can be found here. Worth noting that || will also return true if BOTH A and B are true.
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if...else - JavaScript | MDN - MDN Web Docs
To execute multiple statements, use a block statement ({ /* ... */ }) to group those statements. To execute no statements, use an empty statement. Statement that is executed if condition is falsy and the else clause exists. Can be any statement, including block statements and further nested if statements.
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How to Use If Statements in JavaScript – a Beginner's Guide
In this article, we will explore the basics of if statements in JavaScript, understand their syntax, and see how they can be used to create more responsive and intelligent code. What is an if Statement? An if statement is a conditional statement that allows you to execute a block of code only if a specified condition is true.
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JavaScript if...else Statement (with Examples) - Programiz
In computer programming, the if...else statement is a conditional statement that executes a block of code only when a specific condition is met. For example, Suppose we need to assign different grades to students based on their scores. These conditional tasks can be achieved using the if...else statement.
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JavaScript if Statement
Summary: in this tutorial, you will learn how to use the JavaScript if statement to execute a block when a condition is true. The if statement executes block if a condition is true. The following shows the syntax of the if statement: statement; Code language: JavaScript (javascript) The condition can be a value or an expression.
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JavaScript – Conditional Statements - GeeksforGeeks
JavaScript conditional statements allow you to execute specific blocks of code based on conditions. If the condition is met, a particular block of code will run; otherwise, another block of code will execute based on the condition. 1. Using if Statement. The if statement is used to evaluate a particular condition.
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JavaScript Conditionals: The Basics with Examples | JavaScript.com
There are multiple different types of conditionals in JavaScript including: “If” statements: where if a condition is true it is used to specify execution for a block of code. “Else” statements: where if the same condition is false it specifies the execution for a block of code.
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JavaScript If...Else Statement - Online Tutorials Library
Try the following code to learn how to implement an if-else statement in JavaScript. result = "Qualifies for driving"; } else { . result = "Does not qualify for driving"; } . document.getElementById("output"). innerHTML = result; </ script> <p> Set the variable to a different value and then try... </ p> </ body> </ html>
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JavaScript if, else & nested if statement - Tektutorialshub
JavaScript if statements run a block of code only if an evaluation of a given condition results in true. If statements can be used with else clause, If else if clause and as nested if to control the flow of the program execution. The JavaScript if statement executes a block of code if the evaluation of condition results in truthy. Syntax.