@churchapps/apihelper/src/helpers/SlugHelper.ts

Library of helper functions not specific to any one ChurchApps project or framework.

export class SlugHelper {

  static slugifyString(string: string, removeCharacters?: string[]) {
    const charactersToRemove = removeCharacters ? removeCharacters : ["for", "and", "nor", "but", "or", "yet", "so", "the", "a", "an"];
    const characStr = charactersToRemove.join("|");
    const regex = new RegExp('\\b(' + characStr + ')\\b', 'gi')
    const cleaned = string.replace(regex, '');

    const initialSlug = cleaned.replace(/ /g, "-").toLowerCase();
    const verfiedSlug = this.numerifySlug(initialSlug);
    return verfiedSlug;
  }

  //remove multiple numbers in sequence
  static numerifySlug(slug: string) {
    let initialString = slug;
    const regex = /\d+(?:-\d+)+|\d+/g;
    const matchedArray = initialString.match(regex);

    if (matchedArray) {
      matchedArray.forEach((data) => {
        const length = data.length;
        let splitResult = data;
        if (length > 1) {
          const array = data.split("");
          splitResult = array[0];
        }
        const replacedString = initialString.replace(data, splitResult);
        initialString = replacedString;
      });
    }

    return initialString;
  }

}