JavaScript else if StatementWe can use the else if keyword to check for multiple conditions.The syntax of the else if statement is:// check for first condition if (condition1) { // if body } // check for second condition else if (condition2){ // else if body } // if no condition...
JavaScript If Else If statement The If Else If statement is more powerful than the previous two. This is because you can specify many different outputs based on many different conditions — all within the one statement. You can also end with an else to specify what to do if none of the ...
The first statement of anif…elsecondition must contain an “if” statement followed by the required condition as its parameter. If there are more than two conditions then the “if” condition is followed by “else-if” conditions with respective choices for each of those statements and at the...
When the first condition is false, we then utilize the JavaScript else if statement to test whether the day is identical to 5 (Friday). If the day variable is identical to 5, we print the message “The Day is Friday“. Finally, if our first two conditions are proved false, we utilize...
The if Statement Use theifstatement to specify a block of JavaScript code to be executed if a condition is true. Syntax if(condition) { //block of code to be executed if the condition is true } Note thatifis in lowercase letters. Uppercase letters (If or IF) will generate a JavaScript...
// break condition if (num == 0) { break; } console.log(num); } // Output: // Enter a number: 5 // 5 // Enter a number: 0 Run Code In this example, the break statement terminates the infinite loop when the user input num is 0. If it isn't 0, the loop keeps taking...
Else if Statement Withifandelse, we can run blocks of code depending on whether a condition istrueorfalse. However, sometimes we might have multiple possible conditions and outputs, and need more than simply two options. One way to do this is with theelse ifstatement, which can evaluate mor...
When there are more than two discrete values for which to test, the switch statement is the most optimal choice. Optimizing if-else When optimizing if-else, the goal is always to minimize the number of conditions to evaluate before taking the correct path. The easiest optimization is therefore...
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Conditional statements such as the if statement evaluate their expression using coercion with the ToBoolean abstract method and always follow these simple rules: Objects evaluate to true Undefined evaluates to false Null evaluates to false Booleans evaluate to the value of the boolean Numbers evaluate...