Project Euler 13 JavaScript Solution

projectEuler13.js

const num = 
"37107287533902102798797998220837590246510135740250\n" + 
"46376937677490009712648124896970078050417018260538\n" + 
"74324986199524741059474233309513058123726617309629\n" + 
"91942213363574161572522430563301811072406154908250\n" + 
"23067588207539346171171980310421047513778063246676\n" + 
"89261670696623633820136378418383684178734361726757\n" + 
"28112879812849979408065481931592621691275889832738\n" + 
"44274228917432520321923589422876796487670272189318\n" + 
"47451445736001306439091167216856844588711603153276\n" + 
"70386486105843025439939619828917593665686757934951\n" + 
"62176457141856560629502157223196586755079324193331\n" + 
"64906352462741904929101432445813822663347944758178\n" + 
"92575867718337217661963751590579239728245598838407\n" + 
"58203565325359399008402633568948830189458628227828\n" + 
"80181199384826282014278194139940567587151170094390\n" + 
"35398664372827112653829987240784473053190104293586\n" + 
"86515506006295864861532075273371959191420517255829\n" + 
"71693888707715466499115593487603532921714970056938\n" + 
"54370070576826684624621495650076471787294438377604\n" + 
"53282654108756828443191190634694037855217779295145\n" + 
"36123272525000296071075082563815656710885258350721\n" + 
"45876576172410976447339110607218265236877223636045\n" + 
"17423706905851860660448207621209813287860733969412\n" + 
"81142660418086830619328460811191061556940512689692\n" + 
"51934325451728388641918047049293215058642563049483\n" + 
"62467221648435076201727918039944693004732956340691\n" + 
"15732444386908125794514089057706229429197107928209\n" + 
"55037687525678773091862540744969844508330393682126\n" + 
"18336384825330154686196124348767681297534375946515\n" + 
"80386287592878490201521685554828717201219257766954\n" + 
"78182833757993103614740356856449095527097864797581\n" + 
"16726320100436897842553539920931837441497806860984\n" + 
"48403098129077791799088218795327364475675590848030\n" + 
"87086987551392711854517078544161852424320693150332\n" + 
"59959406895756536782107074926966537676326235447210\n" + 
"69793950679652694742597709739166693763042633987085\n" + 
"41052684708299085211399427365734116182760315001271\n" + 
"65378607361501080857009149939512557028198746004375\n" + 
"35829035317434717326932123578154982629742552737307\n" + 
"94953759765105305946966067683156574377167401875275\n" + 
"88902802571733229619176668713819931811048770190271\n" + 
"25267680276078003013678680992525463401061632866526\n" + 
"36270218540497705585629946580636237993140746255962\n" + 
"24074486908231174977792365466257246923322810917141\n" + 
"91430288197103288597806669760892938638285025333403\n" + 
"34413065578016127815921815005561868836468420090470\n" + 
"23053081172816430487623791969842487255036638784583\n" + 
"11487696932154902810424020138335124462181441773470\n" + 
"63783299490636259666498587618221225225512486764533\n" + 
"67720186971698544312419572409913959008952310058822\n" + 
"95548255300263520781532296796249481641953868218774\n" + 
"76085327132285723110424803456124867697064507995236\n" + 
"37774242535411291684276865538926205024910326572967\n" + 
"23701913275725675285653248258265463092207058596522\n" + 
"29798860272258331913126375147341994889534765745501\n" + 
"18495701454879288984856827726077713721403798879715\n" + 
"38298203783031473527721580348144513491373226651381\n" + 
"34829543829199918180278916522431027392251122869539\n" + 
"40957953066405232632538044100059654939159879593635\n" + 
"29746152185502371307642255121183693803580388584903\n" + 
"41698116222072977186158236678424689157993532961922\n" + 
"62467957194401269043877107275048102390895523597457\n" + 
"23189706772547915061505504953922979530901129967519\n" + 
"86188088225875314529584099251203829009407770775672\n" + 
"11306739708304724483816533873502340845647058077308\n" + 
"82959174767140363198008187129011875491310547126581\n" + 
"97623331044818386269515456334926366572897563400500\n" + 
"42846280183517070527831839425882145521227251250327\n" + 
"55121603546981200581762165212827652751691296897789\n" + 
"32238195734329339946437501907836945765883352399886\n" + 
"75506164965184775180738168837861091527357929701337\n" + 
"62177842752192623401942399639168044983993173312731\n" + 
"32924185707147349566916674687634660915035914677504\n" + 
"99518671430235219628894890102423325116913619626622\n" + 
"73267460800591547471830798392868535206946944540724\n" + 
"76841822524674417161514036427982273348055556214818\n" + 
"97142617910342598647204516893989422179826088076852\n" + 
"87783646182799346313767754307809363333018982642090\n" + 
"10848802521674670883215120185883543223812876952786\n" + 
"71329612474782464538636993009049310363619763878039\n" + 
"62184073572399794223406235393808339651327408011116\n" + 
"66627891981488087797941876876144230030984490851411\n" + 
"60661826293682836764744779239180335110989069790714\n" + 
"85786944089552990653640447425576083659976645795096\n" + 
"66024396409905389607120198219976047599490197230297\n" + 
"64913982680032973156037120041377903785566085089252\n" + 
"16730939319872750275468906903707539413042652315011\n" + 
"94809377245048795150954100921645863754710598436791\n" + 
"78639167021187492431995700641917969777599028300699\n" + 
"15368713711936614952811305876380278410754449733078\n" + 
"40789923115535562561142322423255033685442488917353\n" + 
"44889911501440648020369068063960672322193204149535\n" + 
"41503128880339536053299340368006977710650566631954\n" + 
"81234880673210146739058568557934581403627822703280\n" + 
"82616570773948327592232845941706525094512325230608\n" + 
"22918802058777319719839450180888072429661980811197\n" + 
"77158542502016545090413245809786882778948721859617\n" + 
"72107838435069186155435662884062257473692284509516\n" + 
"20849603980134001723930671666823555245252804609722\n" + 
"53503534226472524250874054075591789781264330331690";

let steps = num.split("\n");

let sum = 0;

for (let i in steps) {
  // Add each 50 Digits number to the sum;
  sum += Number(steps[i]);
}

// Let's remove the dot since it's exponential
let result = Number(String(sum).replace(/\./g, "").slice(0, 10)); 

console.log(result);

On Hackerrank replace line 1-103 with const ARR = input.split("\n"); ARR.shift();

On Hackerrank replace line 1-103 with const steps = input.split("\n"); steps.shift();

@harshprasad44 That solution is 5 years old 💀