JavaScript functions provide a special object called arguments that holds all the arguments passed to a function, regardless of whether the function’s parameter list explicitly defines them. However, arguments isn’t a true array; it’s array-like, possessing a length property and allowing element access via numerical indices, but lacking standard array…
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JavaScript Hashmaps: Objects vs. the Map Object
JavaScript Hashmaps: Objects vs. the Map Object JavaScript doesn’t have a direct “HashMap” equivalent like some other languages. However, we can achieve similar functionality using two primary approaches: plain JavaScript objects and the built-in Map object. This article explores both, comparing their strengths and weaknesses to help you choose the…