Assigning this
to a local variable is a way to reference parent context inside inner functions. In TypeScript when using arrow
functions this happens automatically.
This rule raises an issue when this
is assigned to a local variable.
function Foo() { let that = this; // Noncompliant that.val = 0; setInterval(function() { that.val++; }, 1000); }
function Foo() { this.val = 0; setInterval(() => { this.val++; }, 1000); }
This rule ignores this
used for destructuring.
const { foo, bar } = this;