diff --git a/scripts/preview-theme.js b/scripts/preview-theme.js
index e4422ecd0350a9..688d31690d9eb2 100644
--- a/scripts/preview-theme.js
+++ b/scripts/preview-theme.js
@@ -11,16 +11,16 @@ const OWNER = "anuraghazra";
 const REPO = "github-readme-stats";
 const COMMENT_TITLE = "Automated Theme Preview";
 
-function getPrNumber() {
+const getPrNumber = () => {
   const pullRequest = github.context.payload.pull_request;
   if (!pullRequest) {
     return undefined;
   }
 
   return pullRequest.number;
-}
+};
 
-function findCommentPredicate(inputs, comment) {
+const findCommentPredicate = (inputs, comment) => {
   return (
     (inputs.commentAuthor && comment.user
       ? comment.user.login === inputs.commentAuthor
@@ -29,9 +29,9 @@ function findCommentPredicate(inputs, comment) {
       ? comment.body.includes(inputs.bodyIncludes)
       : true)
   );
-}
+};
 
-async function findComment(octokit, issueNumber) {
+const findComment = async (octokit, issueNumber) => {
   const parameters = {
     owner: OWNER,
     repo: REPO,
@@ -52,28 +52,28 @@ async function findComment(octokit, issueNumber) {
     );
     if (comment) return comment;
   }
-}
+};
 
-async function upsertComment(octokit, props) {
+const upsertComment = async (octokit, props) => {
   if (props.comment_id !== undefined) {
     await octokit.issues.updateComment(props);
   } else {
     await octokit.issues.createComment(props);
   }
-}
+};
 
-function getWebAimLink(color1, color2) {
+const getWebAimLink = (color1, color2) => {
   return `https://webaim.org/resources/contrastchecker/?fcolor=${color1}&bcolor=${color2}`;
-}
+};
 
-function getGrsLink(colors) {
+const getGrsLink = (colors) => {
   const url = `https://github-readme-stats.vercel.app/api?username=anuraghazra`;
   const colorString = Object.keys(colors)
     .map((colorKey) => `${colorKey}=${colors[colorKey]}`)
     .join("&");
 
   return `${url}&${colorString}&show_icons=true`;
-}
+};
 
 const themeContribGuidelines = `
   \rHi, thanks for the theme contribution, please read our theme [contribution guidelines](https://github.com/anuraghazra/github-readme-stats/blob/master/CONTRIBUTING.md#themes-contribution).  
@@ -82,7 +82,7 @@ const themeContribGuidelines = `
   \r> Also note that if this theme is exclusively for your personal use, then instead of adding it to our theme collection you can use card [customization options](https://github.com/anuraghazra/github-readme-stats#customization) 
 `;
 
-async function run() {
+const run = async () => {
   try {
     const ccc = new ColorContrastChecker();
     const warnings = [];
@@ -183,6 +183,6 @@ async function run() {
   } catch (error) {
     console.log(error);
   }
-}
+};
 
 run();
diff --git a/src/calculateRank.js b/src/calculateRank.js
index 742b9ab17509da..60fd02786acb6c 100644
--- a/src/calculateRank.js
+++ b/src/calculateRank.js
@@ -1,5 +1,5 @@
 // https://stackoverflow.com/a/5263759/10629172
-function normalcdf(mean, sigma, to) {
+const normalcdf = (mean, sigma, to) => {
   var z = (to - mean) / Math.sqrt(2 * sigma * sigma);
   var t = 1 / (1 + 0.3275911 * Math.abs(z));
   var a1 = 0.254829592;
@@ -14,9 +14,9 @@ function normalcdf(mean, sigma, to) {
     sign = -1;
   }
   return (1 / 2) * (1 + sign * erf);
-}
+};
 
-function calculateRank({
+const calculateRank = ({
   totalRepos,
   totalCommits,
   contributions,
@@ -24,7 +24,7 @@ function calculateRank({
   prs,
   issues,
   stargazers,
-}) {
+}) => {
   const COMMITS_OFFSET = 1.65;
   const CONTRIBS_OFFSET = 1.65;
   const ISSUES_OFFSET = 1;
@@ -72,6 +72,6 @@ function calculateRank({
   })();
 
   return { level, score: normalizedScore };
-}
+};
 
 module.exports = calculateRank;
diff --git a/src/cards/top-languages-card.js b/src/cards/top-languages-card.js
index b2f5c362dd47fb..8ada66b58c0c9b 100644
--- a/src/cards/top-languages-card.js
+++ b/src/cards/top-languages-card.js
@@ -236,7 +236,7 @@ const useLanguages = (topLangs, hide, langs_count) => {
 const renderTopLanguages = (topLangs, options = {}) => {
   const {
     hide_title,
-    hide_border,
+    hide_border = false,
     card_width,
     title_color,
     text_color,
diff --git a/src/common/utils.js b/src/common/utils.js
index 2ad18dddbc62aa..c798eba108459e 100644
--- a/src/common/utils.js
+++ b/src/common/utils.js
@@ -4,7 +4,7 @@ const wrap = require("word-wrap");
 const themes = require("../../themes");
 const toEmoji = require("emoji-name-map");
 
-/**
+/** Renders error message on the card.
  * @param {string} message
  * @param {string} secondaryMessage
  * @returns {string}
@@ -32,38 +32,38 @@ const renderError = (message, secondaryMessage = "") => {
  * @param {string} str
  * @returns {string}
  */
-function encodeHTML(str) {
+const encodeHTML = (str) => {
   return str
     .replace(/[\u00A0-\u9999<>&](?!#)/gim, (i) => {
       return "&#" + i.charCodeAt(0) + ";";
     })
     .replace(/\u0008/gim, "");
-}
+};
 
 /**
  * @param {number} num
  */
-function kFormatter(num) {
+const kFormatter = (num) => {
   return Math.abs(num) > 999
     ? Math.sign(num) * parseFloat((Math.abs(num) / 1000).toFixed(1)) + "k"
     : Math.sign(num) * Math.abs(num);
-}
+};
 
 /**
  * @param {string} hexColor
  * @returns {boolean}
  */
-function isValidHexColor(hexColor) {
+const isValidHexColor = (hexColor) => {
   return new RegExp(
     /^([A-Fa-f0-9]{8}|[A-Fa-f0-9]{6}|[A-Fa-f0-9]{3}|[A-Fa-f0-9]{4})$/,
   ).test(hexColor);
-}
+};
 
 /**
  * @param {string} value
  * @returns {boolean | string}
  */
-function parseBoolean(value) {
+const parseBoolean = (value) => {
   if (value === "true") {
     return true;
   } else if (value === "false") {
@@ -71,40 +71,40 @@ function parseBoolean(value) {
   } else {
     return value;
   }
-}
+};
 
 /**
  * @param {string} str
  */
-function parseArray(str) {
+const parseArray = (str) => {
   if (!str) return [];
   return str.split(",");
-}
+};
 
 /**
  * @param {number} number
  * @param {number} min
  * @param {number} max
  */
-function clampValue(number, min, max) {
+const clampValue = (number, min, max) => {
   // @ts-ignore
   if (Number.isNaN(parseInt(number))) return min;
   return Math.max(min, Math.min(number, max));
-}
+};
 
 /**
  * @param {string[]} colors
  */
-function isValidGradient(colors) {
+const isValidGradient = (colors) => {
   return isValidHexColor(colors[1]) && isValidHexColor(colors[2]);
-}
+};
 
 /**
  * @param {string} color
  * @param {string} fallbackColor
  * @returns {string | string[]}
  */
-function fallbackColor(color, fallbackColor) {
+const fallbackColor = (color, fallbackColor) => {
   let colors = color.split(",");
   let gradient = null;
 
@@ -116,13 +116,13 @@ function fallbackColor(color, fallbackColor) {
     (gradient ? gradient : isValidHexColor(color) && `#${color}`) ||
     fallbackColor
   );
-}
+};
 
 /**
  * @param {import('axios').AxiosRequestConfig['data']} data
  * @param {import('axios').AxiosRequestConfig['headers']} headers
  */
-function request(data, headers) {
+const request = (data, headers) => {
   // @ts-ignore
   return axios({
     url: "https://api.github.com/graphql",
@@ -130,7 +130,7 @@ function request(data, headers) {
     headers,
     data,
   });
-}
+};
 
 /**
  * @param {object} props
@@ -145,7 +145,7 @@ function request(data, headers) {
  * Auto layout utility, allows us to layout things
  * vertically or horizontally with proper gaping
  */
-function flexLayout({ items, gap, direction, sizes = [] }) {
+const flexLayout = ({ items, gap, direction, sizes = [] }) => {
   let lastSize = 0;
   // filter() for filtering out empty strings
   return items.filter(Boolean).map((item, i) => {
@@ -157,7 +157,7 @@ function flexLayout({ items, gap, direction, sizes = [] }) {
     lastSize += size + gap;
     return `<g transform="${transform}">${item}</g>`;
   });
-}
+};
 
 /**
  * @typedef {object} CardColors
@@ -173,7 +173,7 @@ function flexLayout({ items, gap, direction, sizes = [] }) {
  * returns theme based colors with proper overrides and defaults
  * @param {CardColors} options
  */
-function getCardColors({
+const getCardColors = ({
   title_color,
   text_color,
   icon_color,
@@ -181,7 +181,7 @@ function getCardColors({
   border_color,
   theme,
   fallbackTheme = "default",
-}) {
+}) => {
   const defaultTheme = themes[fallbackTheme];
   const selectedTheme = themes[theme] || defaultTheme;
   const defaultBorderColor =
@@ -212,7 +212,7 @@ function getCardColors({
   );
 
   return { titleColor, iconColor, textColor, bgColor, borderColor };
-}
+};
 
 /**
  * @param {string} text
@@ -220,7 +220,7 @@ function getCardColors({
  * @param {number} maxLines
  * @returns {string[]}
  */
-function wrapTextMultiline(text, width = 59, maxLines = 3) {
+const wrapTextMultiline = (text, width = 59, maxLines = 3) => {
   const fullWidthComma = "，";
   const encoded = encodeHTML(text);
   const isChinese = encoded.includes(fullWidthComma);
@@ -245,7 +245,7 @@ function wrapTextMultiline(text, width = 59, maxLines = 3) {
   // Remove empty lines if text fits in less than maxLines lines
   const multiLineText = lines.filter(Boolean);
   return multiLineText;
-}
+};
 
 const noop = () => {};
 // return console instance based on the environment
@@ -301,7 +301,7 @@ class MissingParamError extends Error {
  * @param {number} fontSize
  * @returns
  */
-function measureText(str, fontSize = 10) {
+const measureText = (str, fontSize = 10) => {
   // prettier-ignore
   const widths = [
     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -333,7 +333,7 @@ function measureText(str, fontSize = 10) {
       )
       .reduce((cur, acc) => acc + cur) * fontSize
   );
-}
+};
 
 /** @param {string} name */
 const lowercaseTrim = (name) => name.toLowerCase().trim();
@@ -344,7 +344,7 @@ const lowercaseTrim = (name) => name.toLowerCase().trim();
  * @param {number} perChunk
  * @returns {Array<T>}
  */
-function chunkArray(arr, perChunk) {
+const chunkArray = (arr, perChunk) => {
   return arr.reduce((resultArray, item, index) => {
     const chunkIndex = Math.floor(index / perChunk);
 
@@ -356,19 +356,19 @@ function chunkArray(arr, perChunk) {
 
     return resultArray;
   }, []);
-}
+};
 
 /**
  *
  * @param {string} str
  * @returns {string}
  */
-function parseEmojis(str) {
+const parseEmojis = (str) => {
   if (!str) throw new Error("[parseEmoji]: str argument not provided");
   return str.replace(/:\w+:/gm, (emoji) => {
     return toEmoji.get(emoji) || "";
   });
-}
+};
 
 module.exports = {
   renderError,
diff --git a/src/fetchers/repo-fetcher.js b/src/fetchers/repo-fetcher.js
index 0bad5f2bd08fdf..c215f374112d7e 100644
--- a/src/fetchers/repo-fetcher.js
+++ b/src/fetchers/repo-fetcher.js
@@ -55,7 +55,7 @@ const urlExample = "/api/pin?username=USERNAME&amp;repo=REPO_NAME";
  * @param {string} reponame
  * @returns {Promise<import("./types").RepositoryData>}
  */
-async function fetchRepo(username, reponame) {
+const fetchRepo = async (username, reponame) => {
   if (!username && !reponame) {
     throw new MissingParamError(["username", "repo"], urlExample);
   }
@@ -95,6 +95,6 @@ async function fetchRepo(username, reponame) {
       starCount: data.organization.repository.stargazers.totalCount,
     };
   }
-}
+};
 
 module.exports = fetchRepo;
diff --git a/src/fetchers/stats-fetcher.js b/src/fetchers/stats-fetcher.js
index dc9be5bb4f89c4..b2754a32ea2f88 100644
--- a/src/fetchers/stats-fetcher.js
+++ b/src/fetchers/stats-fetcher.js
@@ -105,12 +105,12 @@ const totalCommitsFetcher = async (username) => {
  * @param {boolean} include_all_commits
  * @returns {Promise<import("./types").StatsData>}
  */
-async function fetchStats(
+const fetchStats = async (
   username,
   count_private = false,
   include_all_commits = false,
   exclude_repo = [],
-) {
+) => {
   if (!username) throw new MissingParamError(["username"]);
 
   const stats = {
@@ -185,6 +185,6 @@ async function fetchStats(
   });
 
   return stats;
-}
+};
 
 module.exports = fetchStats;
diff --git a/src/fetchers/top-languages-fetcher.js b/src/fetchers/top-languages-fetcher.js
index 7c4c8785c87f90..f826072cdbdec9 100644
--- a/src/fetchers/top-languages-fetcher.js
+++ b/src/fetchers/top-languages-fetcher.js
@@ -44,7 +44,7 @@ const fetcher = (variables, token) => {
  * @param {string[]} exclude_repo
  * @returns {Promise<import("./types").TopLangData>}
  */
-async function fetchTopLanguages(username, exclude_repo = []) {
+const fetchTopLanguages = async (username, exclude_repo = []) => {
   if (!username) throw new MissingParamError(["username"]);
 
   const res = await retryer(fetcher, { login: username });
@@ -102,6 +102,6 @@ async function fetchTopLanguages(username, exclude_repo = []) {
     }, {});
 
   return topLangs;
-}
+};
 
 module.exports = fetchTopLanguages;
diff --git a/src/translations.js b/src/translations.js
index 31b2d218d5486b..302cdb35422b22 100644
--- a/src/translations.js
+++ b/src/translations.js
@@ -354,9 +354,9 @@ const wakatimeCardLocales = {
 
 const availableLocales = Object.keys(repoCardLocales["repocard.archived"]);
 
-function isLocaleAvailable(locale) {
+const isLocaleAvailable = (locale) => {
   return availableLocales.includes(locale.toLowerCase());
-}
+};
 
 module.exports = {
   isLocaleAvailable,