54 lines
1.6 KiB
JavaScript
54 lines
1.6 KiB
JavaScript
// transform /path/to/file.ext to file.ext
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export function basename(path = '') {
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return path ? path.replace(/^.*\//, '') : '';
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}
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// transform /path/to/file.ext to .ext
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export function extname(path = '') {
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const [_, ext] = /.+(\.[^.]+)$/.exec(path) || [];
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return ext || '';
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}
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// join a list of path segments with slashes, ensuring no double slashes
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export function joinPaths(...parts) {
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let str = '';
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for (const part of parts) {
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if (!part) continue;
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str = !str ? part : `${str.replace(/\/$/, '')}/${part.replace(/^\//, '')}`;
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}
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return str;
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}
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// test whether a variable is an object
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export function isObject(obj) {
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return Object.prototype.toString.call(obj) === '[object Object]';
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}
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// returns whether a dark theme is enabled
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export function isDarkTheme() {
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return document.documentElement.classList.contains('theme-arc-green');
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}
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// removes duplicate elements in an array
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export function uniq(arr) {
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return Array.from(new Set(arr));
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}
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// strip <tags> from a string
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export function stripTags(text) {
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return text.replace(/<[^>]*>?/gm, '');
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}
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// searches the inclusive range [minValue, maxValue].
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// credits: https://matthiasott.com/notes/write-your-media-queries-in-pixels-not-ems
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export function mqBinarySearch(feature, minValue, maxValue, step, unit) {
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if (maxValue - minValue < step) {
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return minValue;
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}
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const mid = Math.ceil((minValue + maxValue) / 2 / step) * step;
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if (matchMedia(`screen and (min-${feature}:${mid}${unit})`).matches) {
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return mqBinarySearch(feature, mid, maxValue, step, unit); // feature is >= mid
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}
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return mqBinarySearch(feature, minValue, mid - step, step, unit); // feature is < mid
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}
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