All files / src/utils ValidationUtils.js

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const VALID_STYLES = ["american", "european"];
const VALID_TYPES = ["call", "put"];
 
function isValidStyle(style) {
  return VALID_STYLES.includes(style);
}
 
function isValidType(type) {
  return VALID_TYPES.includes(type);
}
 
function isNumberGreaterThanZero(value) {
  return Number.isFinite(value) && value > 0;
}
 
export { isValidStyle, isValidType, isNumberGreaterThanZero };