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operations.js
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operations.js
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function elementOrganizer(str) {
let strToArr = str.split("").filter((i) => i !== " ");
let arr = [];
for (i = 0; i <= strToArr.length - 1; i++) {
if (
strToArr[i] === "1" ||
strToArr[i] === "2" ||
strToArr[i] === "3" ||
strToArr[i] === "4" ||
strToArr[i] === "5" ||
strToArr[i] === "6" ||
strToArr[i] === "7" ||
strToArr[i] === "8" ||
strToArr[i] === "9"
) {
if (strToArr[i - 1] === "-") {
arr.push(parseInt(strToArr[i - 1] + strToArr[i]));
} else {
arr.push(parseInt(strToArr[i]));
}
} else {
arr.push(strToArr[i]);
}
}
var newarray = arr.filter((i) => i !== "-");
return newarray;
}
export default function operations(ops) {
let opsStrOpsArr = elementOrganizer(ops);
let finalArr = [];
console.log(opsStrOpsArr);
opsStrOpsArr.map((item) => {
if (typeof item === "number") {
finalArr.push(item);
} else if (item === "D") {
finalArr.push(finalArr[finalArr.length - 1] * 2);
} else if (item === "R") {
finalArr.pop();
} else if (item === "+") {
finalArr.push(
finalArr[finalArr.length - 1] + finalArr[finalArr.length - 2]
);
} else {
return;
}
});
return finalArr;
}