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Warning: This blog post is outdated. Instead, read chapter “Classes” in “Exploring JavaScript”. Recently, TC39 decided on the final semantics of classes in ECMAScript 6 [1]. This blog post explains how their final incarnation works. The most significant recent changes were related to how subclassing is handled. Overview # class Point { constructor(x, y) { this.x = x; this.y = y; } toString() { re
This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2016. Learn moreSee full compatibilityReport feedback The function* declaration creates a binding of a new generator function to a given name. A generator function can be exited and later re-entered, with its context (variable bindings) saved across re-entrances.
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