136 lines
3.8 KiB
TypeScript
136 lines
3.8 KiB
TypeScript
export function getParameterByName(name: string, url: string) {
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name = name.replace(/[[\]]/g, '\\$&');
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var regex = new RegExp('[?&]' + name + '(=([^&#]*)|&|#|$)');
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var results = regex.exec(url);
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if (!results) return null;
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if (!results[2]) return '';
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return decodeURIComponent(results[2].replace(/\+/g, ' '));
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}
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export function isNullOrUndefined(value: any) {
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return value === null || value === undefined;
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}
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export function getPlatformString() {
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try {
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const platform = navigator.platform.toLowerCase();
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let trimmed = '';
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if (platform.indexOf('mac') !== -1) {
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trimmed = 'mac';
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} else if (platform.indexOf('win') !== -1) {
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trimmed = 'windows';
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}
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if (platform.indexOf('linux') !== -1) {
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trimmed = 'linux';
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}
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return trimmed + (isDesktopApplication() ? '-desktop' : '-web');
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} catch (e) {
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return 'unknown-platform';
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}
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}
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let sharedDateFormatter: Intl.DateTimeFormat;
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export function dateToLocalizedString(date: Date) {
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if (typeof Intl !== 'undefined' && Intl.DateTimeFormat) {
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if (!sharedDateFormatter) {
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const locale = (
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(navigator.languages && navigator.languages.length)
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? navigator.languages[0]
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: navigator.language
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);
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sharedDateFormatter = new Intl.DateTimeFormat(locale, {
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year: 'numeric',
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month: 'numeric',
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day: '2-digit',
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hour: '2-digit',
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minute: '2-digit',
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});
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}
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return sharedDateFormatter.format(date);
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} else {
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// IE < 11, Safari <= 9.0.
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// In English, this generates the string most similar to
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// the toLocaleDateString() result above.
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return date.toDateString() + ' ' + date.toLocaleTimeString();
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}
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}
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/** Via https://davidwalsh.name/javascript-debounce-function */
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export function debounce(this: any, func: any, wait: number, immediate = false) {
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let timeout: any;
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return () => {
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const context = this;
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const args = arguments;
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const later = function () {
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timeout = null;
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if (!immediate) func.apply(context, args);
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};
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const callNow = immediate && !timeout;
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clearTimeout(timeout);
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timeout = setTimeout(later, wait);
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if (callNow) func.apply(context, args);
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};
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};
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export function isDesktopApplication() {
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return (window as any).isElectron;
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}
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// https://tc39.github.io/ecma262/#sec-array.prototype.includes
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if (!Array.prototype.includes) {
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// eslint-disable-next-line no-extend-native
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Object.defineProperty(Array.prototype, 'includes', {
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value: function(searchElement: any, fromIndex: number) {
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if (this == null) {
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throw new TypeError('"this" is null or not defined');
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}
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// 1. Let O be ? ToObject(this value).
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var o = Object(this);
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// 2. Let len be ? ToLength(? Get(O, "length")).
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var len = o.length >>> 0;
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// 3. If len is 0, return false.
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if (len === 0) {
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return false;
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}
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// 4. Let n be ? ToInteger(fromIndex).
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// (If fromIndex is undefined, this step produces the value 0.)
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var n = fromIndex | 0;
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// 5. If n ≥ 0, then
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// a. Let k be n.
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// 6. Else n < 0,
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// a. Let k be len + n.
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// b. If k < 0, let k be 0.
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var k = Math.max(n >= 0 ? n : len - Math.abs(n), 0);
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function sameValueZero(x: number, y: number) {
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return (
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x === y ||
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(typeof x === 'number' &&
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typeof y === 'number' &&
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isNaN(x) &&
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isNaN(y))
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);
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}
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// 7. Repeat, while k < len
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while (k < len) {
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// a. Let elementK be the result of ? Get(O, ! ToString(k)).
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// b. If SameValueZero(searchElement, elementK) is true, return true.
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if (sameValueZero(o[k], searchElement)) {
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return true;
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}
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// c. Increase k by 1.
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k++;
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}
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// 8. Return false
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return false;
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}
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});
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}
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