code: function isStringBefore(before) {
    const result = { is: false, opsBetween: false };
    const stringOpsClipped = before.replace(/(\s*[+/*%]|\s+-)+$/, "");
  
    if (stringOpsClipped !== before) {
      result.opsBetween = true;
    }
  
    // If it is quoted
    if (
      stringOpsClipped[stringOpsClipped.length - 1] === '"' ||
      stringOpsClipped[stringOpsClipped.length - 1] === "'"
    ) {
      result.is = true;
    } else if (
      stringOpsClipped.search(
        /(?:^|[/(){},: ])([a-zA-Z_][a-zA-Z_0-9-]*|-+[a-zA-Z_]+[a-zA-Z_0-9-]*)$/
      ) !== -1
    ) {
      // First pattern: a1, a1a, a-1,
      result.is = true;
    }
  
    return result;
  }
docs: Checks if there is a string before the character.
  Also checks if there is a math operator in between
  
  @param {String} before - the input string that preceses the character
  @return {Object} return
  {Boolean} return.is - if there is a string
  {String} return.opsBetween - if there are operators in between