Do not use Ternary operator to return Boolean

do-not-use-ternary-operator-to-return-boolean

Introduction

All comperation statements either in Apex or LWC return Boolean. Let’s take a look for an examples.

LWC

'a' === 'b' // => false
1 === 1 // => true

Apex

'a' == 'b' // => false
1 == 1 // => true

There is no need to use the ternary operator since the comparison statement returns a Boolean.

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const isPartner = this.userType === 'Partner' ? true : false;

const isCustomer = this.userType === 'Partner' ? false : true;

Based on the documentation:

condition ? exprIfTrue : exprIfFalse;

You have something like this:

condition that evaluates to Boolean (condition) ? true (exprIfTrue) : false (exprIfFalse);

true (condition that evaluates to Boolean) ? true : false;

false (condition that evaluates to Boolean) ? true : false;

this.userType === 'Partner' is comperation statement.
A comparison statement inherently returns a Boolean value.
Therefore, there is no need to use the Ternary operator, since the result is already true or false.

Based on the KISS principle your code can be as simple as possible.

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const isPartner = this.userType === 'Partner';

const isCustomer = this.userType !== 'Partner';

Do not use Ternary operator to return Boolean

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