mirror of
https://github.com/mempool/mempool.git
synced 2025-02-27 16:46:32 +01:00
138 lines
No EOL
3.6 KiB
TypeScript
138 lines
No EOL
3.6 KiB
TypeScript
export function isMobile(): boolean {
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return (window.innerWidth <= 767.98);
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}
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export function getFlagEmoji(countryCode): string {
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if (!countryCode) {
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return '';
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}
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const codePoints = countryCode
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.toUpperCase()
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.split('')
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.map(char => 127397 + char.charCodeAt());
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return String.fromCodePoint(...codePoints);
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}
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// https://gist.github.com/calebgrove/c285a9510948b633aa47
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export function convertRegion(input, to: 'name' | 'abbreviated'): string {
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if (!input) {
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return '';
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}
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const states = [
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['Alabama', 'AL'],
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['Alaska', 'AK'],
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['American Samoa', 'AS'],
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['Arizona', 'AZ'],
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['Arkansas', 'AR'],
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['Armed Forces Americas', 'AA'],
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['Armed Forces Europe', 'AE'],
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['Armed Forces Pacific', 'AP'],
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['California', 'CA'],
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['Colorado', 'CO'],
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['Connecticut', 'CT'],
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['Delaware', 'DE'],
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['District Of Columbia', 'DC'],
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['Florida', 'FL'],
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['Georgia', 'GA'],
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['Guam', 'GU'],
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['Hawaii', 'HI'],
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['Idaho', 'ID'],
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['Illinois', 'IL'],
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['Indiana', 'IN'],
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['Iowa', 'IA'],
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['Kansas', 'KS'],
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['Kentucky', 'KY'],
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['Louisiana', 'LA'],
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['Maine', 'ME'],
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['Marshall Islands', 'MH'],
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['Maryland', 'MD'],
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['Massachusetts', 'MA'],
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['Michigan', 'MI'],
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['Minnesota', 'MN'],
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['Mississippi', 'MS'],
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['Missouri', 'MO'],
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['Montana', 'MT'],
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['Nebraska', 'NE'],
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['Nevada', 'NV'],
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['New Hampshire', 'NH'],
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['New Jersey', 'NJ'],
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['New Mexico', 'NM'],
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['New York', 'NY'],
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['North Carolina', 'NC'],
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['North Dakota', 'ND'],
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['Northern Mariana Islands', 'NP'],
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['Ohio', 'OH'],
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['Oklahoma', 'OK'],
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['Oregon', 'OR'],
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['Pennsylvania', 'PA'],
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['Puerto Rico', 'PR'],
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['Rhode Island', 'RI'],
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['South Carolina', 'SC'],
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['South Dakota', 'SD'],
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['Tennessee', 'TN'],
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['Texas', 'TX'],
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['US Virgin Islands', 'VI'],
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['Utah', 'UT'],
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['Vermont', 'VT'],
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['Virginia', 'VA'],
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['Washington', 'WA'],
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['West Virginia', 'WV'],
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['Wisconsin', 'WI'],
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['Wyoming', 'WY'],
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];
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// So happy that Canada and the US have distinct abbreviations
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const provinces = [
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['Alberta', 'AB'],
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['British Columbia', 'BC'],
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['Manitoba', 'MB'],
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['New Brunswick', 'NB'],
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['Newfoundland', 'NF'],
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['Northwest Territory', 'NT'],
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['Nova Scotia', 'NS'],
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['Nunavut', 'NU'],
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['Ontario', 'ON'],
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['Prince Edward Island', 'PE'],
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['Quebec', 'QC'],
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['Saskatchewan', 'SK'],
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['Yukon', 'YT'],
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];
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const regions = states.concat(provinces);
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let i; // Reusable loop variable
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if (to == 'abbreviated') {
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input = input.replace(/\w\S*/g, function (txt) { return txt.charAt(0).toUpperCase() + txt.substr(1).toLowerCase(); });
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for (i = 0; i < regions.length; i++) {
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if (regions[i][0] == input) {
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return (regions[i][1]);
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}
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}
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} else if (to == 'name') {
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input = input.toUpperCase();
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for (i = 0; i < regions.length; i++) {
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if (regions[i][1] == input) {
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return (regions[i][0]);
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}
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}
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}
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}
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export function haversineDistance(lat1: number, lon1: number, lat2: number, lon2: number): number {
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const rlat1 = lat1 * Math.PI / 180;
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const rlon1 = lon1 * Math.PI / 180;
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const rlat2 = lat2 * Math.PI / 180;
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const rlon2 = lon2 * Math.PI / 180;
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const dlat = Math.sin((rlat2 - rlat1) / 2);
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const dlon = Math.sin((rlon2 - rlon1) / 2);
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const a = Math.min(1, Math.max(0, (dlat * dlat) + (Math.cos(rlat1) * Math.cos(rlat2) * dlon * dlon)));
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const d = 2 * 6371 * Math.asin(Math.sqrt(a));
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return d;
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}
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export function kmToMiles(km: number): number {
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return km * 0.62137119;
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} |