删除javascript/jquery中数组中出现的所有重复值

let arr = [1, 2, 2, 3, 4, 4, 5];
let uniqueArr = [...new Set(arr)];
console.log(uniqueArr); // 输出: [1, 2, 3, 4, 5]

let arr = [1, 2, 2, 3, 4, 4, 5];
let uniqueArr = arr.filter((item, index) => {
    return arr.indexOf(item) === index;
});
console.log(uniqueArr); // 输出: [1, 2, 3, 4, 5]

let arr = [1, 2, 2, 3, 4, 4, 5];
let uniqueArr = arr.reduce((accumulator, currentValue) => {
    if (!accumulator.includes(currentValue)) {
        accumulator.push(currentValue);
    }
    return accumulator;
}, []);
console.log(uniqueArr); // 输出: [1, 2, 3, 4, 5]

let arr = [{id: 1, name: 'Alice'}, {id: 2, name: 'Bob'}, {id: 1, name: 'Alice'}];
let uniqueArr = arr.reduce((accumulator, currentValue) => {
    if (!accumulator.some((item) => item.id === currentValue.id)) {
        accumulator.push(currentValue);
    }
    return accumulator;
}, []);
console.log(uniqueArr); // 输出: [{id: 1, name: 'Alice'}, {id: 2, name: 'Bob'}]