SOURCE

function search(nums, target) {
    let left = 0;
    let right = nums.length - 1;
    while (left <= right) {
        let middle = left + ((right - left) >> 1)
        // let middle = Math.floor(left + (right - left) / 2)
        if (nums[middle] === target) return middle
        let isSmall = nums[middle] < target
        left = isSmall ? middle + 1 : left
        right = isSmall ? right : middle - 1
    }
    return -1
};

console.log(search([-1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10], 6))

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