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script.js
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script.js
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function removeWhiteSpace(text) {
return text.replace(/\s+/g, "");
};
function removeNumbers(text) {
return text.replace(/\d+/g, "");
};
function cleanOriginData(text) {
return removeNumbers(removeWhiteSpace(text));
};
const resultField = document.getElementById("result");
function execute() {
resultField.className = "";
const cleanData = cleanOriginData(document.getElementById("originData").value);
const startIndex = document.getElementById("startIndex").value;
const numberOfItems = document.getElementById("numberOfItems").value;
let searchResult = [];
if (startIndex < 1) {
searchResult.push("Error: Invalid Start Index");
resultField.className = "error";
} else if (startIndex > cleanData.length) {
searchResult.push("Error: Start Index too large for Origin Data");
resultField.className = "error";
} else if (numberOfItems < 1) {
searchResult.push("Error: Invalid Number of Items");
resultField.className = "error";
} else if (cleanData.length < Number(startIndex) + Number(numberOfItems)) {
searchResult.push("Error: Number of Items too large for origin data");
resultField.className = "error";
} else {
for(let i = 0; i < numberOfItems; i++) {
searchResult.push(cleanData[(startIndex-1)+i])
}
}
resultField.textContent = searchResult.join("");
};
function resetForm() {
resultField.textContent = undefined;
resultField.className = "";
}