or how to express it in js

How to represent or ||

Overview:
In JavaScript, the "OR" operator | | is used to determine whether a condition is true in a Boolean expression.

Syntax:

<code class="js">boolean1 || boolean2</code>

Function:
|| The operator will return the following value:

• If boolean1 is true, returns boolean1.
• If boolean1 is false, return boolean2.

Priority:
|| operator has lower priority than && operator and higher than assignment operator.

Example:

<code class="js">// 如果 age 大于 18，则返回 true，否则返回 false
const isAdult = age > 18 || false;

// 如果 name 是 "John" 或 "Mary"，则返回 true，否则返回 false
const isJohnOrMary = name === "John" || name === "Mary";</code>

Note:

• || operator does not convert non-boolean values is a Boolean value. The
• || operator is short-circuited, which means it will only evaluate the required expression.

• || operator can be used for chain comparison, that is:

  <code class="js">const isEvenOrOdd = number % 2 === 0 || number % 2 === 1;</code>

Other operators representing or :

There are no other operators in JavaScript that represent the OR operation.

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