How to Correctly Use Multiple OR Conditions in an If Statement?

Using Multiple OR Conditions in If Statements

In an if statement, it is possible to use multiple OR (||) conditions to test for a series of conditions. However, it's important to be aware of the syntax and evaluation rules to ensure proper functionality.

In the given code snippet:

if (number==1||2||3) {

the intention is to test if the value of number is equal to 1, 2, or 3. However, this syntax is incorrect. The correct way to write the condition is:

if (number == 1 || number == 2 || number == 3) {

In this corrected syntax, each OR condition is separated by || and enclosed in parentheses. This ensures that the conditions are evaluated correctly.

As explained in the code comments, the previous syntax was interpreted as:

if ((number == 1) || 2 || 3) {

where the OR operator (||) was applied to the truth values of 2 and 3, resulting in a true value regardless of the value of number.

Therefore, to use multiple OR conditions in an if statement, it is essential to provide each condition separately and separate them with || enclosed in parentheses.

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