explicit-member-accessibility.md

Require explicit accessibility modifiers on class properties and methods (explicit-member-accessibility)

Leaving off accessibility modifier and making everything public can make your interface hard to use by others. If you make all internal pieces private or protected, your interface will be easier to use.

Rule Details

This rule aims to make code more readable and explicit about who can use which properties.

The following patterns are considered warnings:

class Animal {
    name: string; // No accessibility modifier
    getName(): string {} // No accessibility modifier
}

The following patterns are not warnings:

class Animal {
    private name: string; // explicit accessibility modifier
    public getName(): string {} // explicit accessibility modifier
}

When Not To Use It

If you think defaulting to public is a good default, then you will not need this rule.

Further Reading

• TypeScript Accessibility Modifiers

Compatibility

• TSLint: member-access