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Watch algorithms execute step-by-step with synchronized code highlighting and variable state visualization.
1 function twoSum(nums, target) {2 let left = 0;3 let right = nums.length - 1;4 while (left < right) {5 const sum = nums[left] + nums[right];6 if (sum === target) return [left, right];7 }8 }Array Visualization
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useEffect runs asynchronously after the browser has painted, while useLayoutEffect runs synchronously before the browser paints. useLayoutEffect is useful when you need to measure DOM elements or make visual changes...
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