timeValue.js 1.2 KB

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  1. const parseInt = globalThis.parseInt;
  2. function buildTimeValue(value) {
  3. const onlyDigitsValue = value.replace(/\D/g, '');
  4. if (onlyDigitsValue.length < 2) {
  5. return value;
  6. }
  7. const firstDigit = parseInt(onlyDigitsValue[0], 10);
  8. const secondDigit = parseInt(onlyDigitsValue[1], 10);
  9. if (firstDigit >= 3 || firstDigit === 2 && secondDigit >= 4) {
  10. let index;
  11. if (firstDigit >= 3) {
  12. index = 1;
  13. } else {
  14. index = 2;
  15. }
  16. return build(onlyDigitsValue, index);
  17. }
  18. if (value.length === 2) {
  19. return value;
  20. }
  21. return build(onlyDigitsValue, 2);
  22. }
  23. function build(onlyDigitsValue, index) {
  24. const hours = onlyDigitsValue.slice(0, index);
  25. const validHours = Math.min(parseInt(hours, 10), 23);
  26. const minuteCharacters = onlyDigitsValue.slice(index);
  27. const parsedMinutes = parseInt(minuteCharacters, 10);
  28. const validMinutes = Math.min(parsedMinutes, 59);
  29. return `${validHours.toString().padStart(2, '0')}:${validMinutes.toString().padStart(2, '0')}`;
  30. }
  31. function isValidDateOrTimeValue(element, value) {
  32. const clone = element.cloneNode();
  33. clone.value = value;
  34. return clone.value === value;
  35. }
  36. export { buildTimeValue, isValidDateOrTimeValue };