DMleadgen
46d973904b
Next.js website for Rocky Mountain Vending company featuring: - Product catalog with Stripe integration - Service areas and parts pages - Admin dashboard with Clerk authentication - SEO optimized pages with JSON-LD structured data Co-authored-by: Cursor <cursoragent@cursor.com>
26 lines
No EOL
860 B
Text
26 lines
No EOL
860 B
Text
/**
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* Given an array and a number N, return a new array which contains every nTh
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* element of the input array. For n below 1, an empty array is returned.
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* If isValid is provided, all candidates must suffice the condition, else undefined is returned.
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* @param {T[]} array An input array.
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* @param {integer} n A number
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* @param {Function} isValid A function to evaluate a candidate form the array
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* @returns {T[]} The result array of the same type as the input array.
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*/
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export function getEveryNthWithCondition(array, n, isValid) {
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if (n < 1) {
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return [];
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}
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if (n === 1 && isValid === undefined) {
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return array;
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}
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var result = [];
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for (var i = 0; i < array.length; i += n) {
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if (isValid === undefined || isValid(array[i]) === true) {
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result.push(array[i]);
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} else {
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return undefined;
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}
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}
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return result;
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} |