<pre class="shiki github-dark shaku"><code>/** * @param {string} num1 * @param {string} num2 * @return {string} */function subtract(num1, num2) { // your code here if(num1.length&lt;2 &amp;&amp; num2.length&lt;2){ return `${(Number(num1)-Number(num2))}` } let i=num1.length-1; let j=num2.length-1; let result ="" borrow=0 console.log(num1[i],num2[j],borrow,"222") while(i&gt;=0 || j&gt;=0 || borrow&gt;0){ let digit1= num1[i] || 0 let digit2 = num2[j] || 0 let num = digit1-digit2-borrow if(num&lt;0){ num+=10 borrow=1 } else{ borrow=0 } result = num+result i--; j-- } while(result.length&gt;1 &amp;&amp; result[0]==="0"){ result = result.slice(1) } return result}console.log(subtract("100","99")) //5// console.log(subtract("10","9")) //"1"// console.log(subtract("98","9")) //"91"// console.log(subtract("10","7")) //"3"// console.log(subtract("101","5")) //"96"// console.log(subtract("10111","89")) //"10022"</code></pre>

accepted code

Luckily we already have built-in support of BigInt in JavaScript, at least in some browsers. 1000000000000000000000n - 999999999999999999999n// 1n Sup…