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Core Functional and Utility Functions in Python Python provides a suite of built-in functions that are essential for functional programming, data transformation, and common operations. This article covers several key functions and their practical applications. The filter() Function The filter() function constructs an iterator from elements of a ...

The IOS3 module in Zepto provides backward compatibility for older iOS versions (specifically iOS 3.x) by implementing polyfills for two commonly used yet missing methods: String.prototype.trim and Array.prototype.reduce. trim Polyfill The native String.prototype.trim is unavailable in iOS 3.2, so Zepto defines it only if it doesn’t already exi ...

Basic Array Deduplication Using Set For primitive-value arrays, Set provides an elegant and native solution: const input = ['Zhang San', 'Zhang San', 'Three Zhang San']; const uniqueSet = new Set(input); console.log([...uniqueSet]); // ['Zhang San', 'Three Zhang San'] Object Array Deduplication via reduce() For arrays of objects where uniquen ...