💾arr.removeDuplicates()

JS ⟩ value ⟩ object⟩ built-in ⟩ Array ⟩ extension ⟩ arr.removeDuplicates()

💾 程式

• replit

Object.defineProperties(Array.prototype, {
    // 🔹 .removeDuplicates()
    removeDuplicates: {
        value: function() {
            return [... new Set(this)];    // new array (non-mutating)
        },
    },
});

💈範例

⬇️ 應用

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