function binarySearch(nums: number[], target: number): number {
    let left = 0;
    let right = nums.length - 1;

    while (left <= right) {
        const mid = left + Math.floor((right - left) / 2);

        if (nums[mid] === target) {
            return mid;
        } else if (nums[mid] < target) {
            left = mid + 1;
        } else {
            right = mid - 1;
        }
    }

    return left;
}

function searchInsert(nums: number[], target: number): number {
    return binarySearch(nums, target);
};

import { useState, useEffect, useRef } from "react";
// Usage
function App() {
  // State value and setter for our example
  const [count, setCount] = useState(0);
  // Get the previous value (was passed into hook on last render)
  const prevCount = usePrevious(count);
  // Display both current and previous count value
  return (
    <div>
      <h1>
        Now: {count}, before: {prevCount}
      </h1>
      <button onClick={() => setCount(count + 1)}>Increment</button>
    </div>
  );
}
// Hook
function usePrevious(value) {
  // The ref object is a generic container whose current property is mutable ...
  // ... and can hold any value, similar to an instance property on a class
  const ref = useRef();
  // Store current value in ref
  useEffect(() => {
    ref.current = value;
  }, [value]); // Only re-run if value changes
  // Return previous value (happens before update in useEffect above)
  return ref.current;
}

let state
let prevValue
function customState(initialValue){
  if(state===undefined)
  {
    state=initialValue
  }
  function setState (newValue){
    if(typeof newValue ==="function")
    {

    }
    state=newValue
    render()
  }
  return [state,setState]
+(1)
setState(2)
setState((prev, next) =>  { return cancelIdleCallback() })
// state

const langToConfig = {
    'javascript': {
        image: '',
        cmd: ['']
    },
    'php': {
        image: '',
        cmd: ['']
    },
}

// Print Hello, World!
console.log("Hello, World!");

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