forgejo/web_src/js/utils.js

// retrieve a HTML string for given SVG icon name and size in pixels
export function svg(name, size) {
  return `<svg class="svg ${name}" width="${size}" height="${size}" aria-hidden="true"><use xlink:href="#${name}"/></svg>`;
}

// transform /path/to/file.ext to file.ext
export function basename(path = '') {
  return path ? path.replace(/^.*\//, '') : '';
}

// transform /path/to/file.ext to .ext
export function extname(path = '') {
  const [_, ext] = /.+(\.[^.]+)$/.exec(path) || [];
  return ext || '';
}

// test whether a variable is an object
export function isObject(obj) {
  return Object.prototype.toString.call(obj) === '[object Object]';
}

// returns whether a dark theme is enabled
export function isDarkTheme() {
  return document.documentElement.classList.contains('theme-arc-green');
}

// removes duplicate elements in an array
export function uniq(arr) {
  return Array.from(new Set(arr));
}