Show navigation Writing a high-performance JavaScript engine takes more than just having a highly optimising compiler like TurboFan. Particularly for short-lived sessions, like loading websites or command line tools, there’s a lot of work that happens before the optimising compiler even has a chance to start optimising, let alone having time to generate the optimised code. This is the reason why,
Show navigation The new class static initialization block syntax lets developers gather code that should run once for a given class definition and put them in a single place. Consider the following example where a pseudo-random number generator uses a static block to initialize an entropy pool once, when the class MyPRNG definition is evaluated. class MyPRNG { constructor(seed) { if (seed === unde
Show navigation The super keyword can be used for accessing properties and functions on an object’s parent. Previously, accessing a super property (like super.x) was implemented via a runtime call. Starting from V8 v9.0, we reuse the inline cache (IC) system in non-optimized code and generate the proper optimized code for super property access, without having to jump to the runtime. As you can see
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