| const res = search([1, 2, 3, 4, 534, 34, 2], 34) |
| console.log(res) |
| |
| function search(nums: number[], target: number): number | void { |
| |
| let left = 0 |
| let right = nums.length - 1 |
| while (left <= right) { |
| let middle = (left + right) / 2 |
| |
| |
| if (nums[middle] > target) right = middle - 1 |
| else if (nums[middle] < target) left = middle + 1 |
| else return middle |
| } |
| return |
| } |
| |
| console.log('----------------------------------') |
| const res2 = search([1, 2, 3, 4, 534, 34, 2], 34) |
| console.log(res2) |
| function search2(nums: number[], target: number): number | void { |
| |
| let left = 0 |
| let right = nums.length |
| while (left < right) { |
| let middle = (left + right) / 2 |
| |
| |
| if (nums[middle] > target) right = middle |
| else if (nums[middle] < target) left = middle + 1 |
| else return middle |
| } |
| return |
| } |
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