A little late to the discussion, but generating the array declaratively would probably go a little faster if we make Array think it's converting an "array-like" structure and provide a map function.
Array
console.time("Array.from"); var array = Array.from({length: 1e7}, (_, i) => i); console.timeEnd("Array.from");
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A little late to the discussion, but generating the array declaratively would probably go a little faster if we make
Arraythink it's converting an "array-like" structure and provide a map function.