Piyush Garg Content

 Lazy Loading and code splitting

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Basics

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https://leetcode.com/problems/palindrome-linked-list/description/ https://www.w3schools.com/jsref/jsref_slice_array.asp   const arr=[1,2] ; console.log(arr.reverse().join()===arr.join()); ChatGPT The expression arr.reverse() reverses the order of elements in the arr array in place, meaning it modifies the original array. The arr.join() method converts the elements of the array into a string, with each element separated by a comma by default. In the given code, arr.reverse().join() returns a string representation of the reversed array. However, the original arr array has also been reversed because the reverse() method modifies the array directly. Therefore, arr.reverse().join() === arr.join() will evaluate to true because both sides of the comparison refer to the same array that has been reversed and then converted to a string. const newarr =arr; return newarr.reverse().join()===arr.join() ; ChatGPT In the code you provided, newarr is assigned the reference to the arr ...
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Arguments Passed in Functions

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Offset index of an array

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const numbers = [1,2,3,4]; const output =move(numbers,1,-1);  [2,1,3,5,4] console.log(output);  function move(array,index,offset){ } https://www.freecodecamp.org/news/swap-two-array-elements-in-javascript/   /**  * Move an element  * input ->[1,2,3,4,5];  * move(arr,index,offset)  *   * we should not modify the orignal array  *   * if not possible --> invalid  * move(input,0,-1)  *  */ const move =(arr,index,offset)=>{   const position =index+offset;      if(position>=arr.length||position<0){         return 'Invalid';   }      const clone =[...arr];   let element=clone.splice(index,1)[0];   clone.splice(position,0,element)   return clone; } const arr=[1,2,3,4,5]; console.log(move(arr,0,5))  
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