Скачать или смотреть JavaScript Polyfill - Salesforce Learn Core Concepts 2/4

If a new feature isn’t implemented natively, there’s often a bit of code written to temporarily serve the purpose of that missing feature. This temporary fill-in code is called a polyfill. In fact, the Lightning Component Framework uses a curated list of polyfills that are applied before other code is run to automatically improve browser compatibility.

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