January 2019
Beginner
210 pages
4h 47m
English
Content preview from Hands-On Functional Programming with TypeScript
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The this operator
In JavaScript, the this operator behaves a little differently compared to other languages. The value of the this operator is often determined by the way a function is invoked. Its value cannot be set by assignment during execution, and it may be different each time a function is invoked.
The this operator also has some differences when using strict and non-strict modes. ECMAScript 5's strict mode is a way to opt into a restricted variant of JavaScript. You can learn more about strict mode at https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Strict_mode.
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