10 examples of 'date-fns parseiso' in JavaScript

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export default function parseDate(
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  date: string | number | Date,
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  mask = 'default',
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  locale = zhCN
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): Date {
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  if (date instanceof Date) {
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    return date;
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  }
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  if (typeof date === 'number') {
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    return new Date(date);
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  }
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  mask = mask || 'default';
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  const ret = parse(date, mask, locale);
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  if (!ret) {
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    return null;
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  }
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  return ret;
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}

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public resolveISOString(value: string): number {
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    let todayInMS: number = Date.UTC(this.today.getFullYear(), this.today.getMonth(), this.today.getDate());
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    let dt: string[] = value.split("-");
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    let year: number, month: number, day: number;
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    if (dt.length >= 3) {
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        year = parseInt(dt[0]);
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        month = parseInt(dt[1]) - 1;
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        day = parseInt(dt[2]);
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    } else if (dt.length >= 2) {
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        month = parseInt(dt[0]) - 1;
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        day = parseInt(dt[1]);
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    } else {
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        day = parseInt(dt[0]);
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    }
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    if (month && (month < 0 || month > 12)) throw new Error("Invalid value for month");
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    if (day && (day < 0 || day > 31)) throw new Error("Invalid value for day");
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    let inputInMS: number = 0;
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    if (year) {
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        // full date with year (e.g. 2016-10-24)
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        inputInMS = Date.UTC(parseInt(dt[0]), parseInt(dt[1]) - 1, parseInt(dt[2]));
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    } else if (month) {
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        // month and day (eg. 10-24)
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        inputInMS = Date.UTC(this.today.getFullYear(), parseInt(dt[0]) - 1, parseInt(dt[1]));
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    } else if (day) {
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        // just a day
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        inputInMS = Date.UTC(this.today.getFullYear(), this.today.getMonth(), parseInt(dt[0]));
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    } else {
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        throw new Error("Failed to parse the date");
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    }
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    let result: number = Math.floor((inputInMS - todayInMS) / (1000 * 60 * 60 * 24));
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    return result;
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}

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public static parse(date: any): Date {
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    return moment(date).toDate();
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    //return moment.utc(date).add('milliseconds', timeZoneOffset).toDate();
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}

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function parseDate (date) {
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  date = date.split('-')
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  var year = parseInt(date[0])
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  var month = parseInt(date[1]) - 1
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  var day = parseInt(date[2])
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  return new Date(year, month, day)
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}

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export function formatDateTimeStringISO(dateTimeString) {
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    if (!dateTimeString) {
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        return blankValue;
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    }
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    const parts = new Intl.DateTimeFormat('en', {
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        year: 'numeric',
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        month: '2-digit',
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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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        second: '2-digit',
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        hour12: false,
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    }).formatToParts(new Date(dateTimeString));
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    const keys = {};
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    for (const {type, value} of parts) {
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        keys[type] = value;
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    }
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    return `${keys.year}-${keys.month}-${keys.day} ${keys.hour}:${keys.minute}:${keys.second}`;
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}

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function date (isostring) {
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  return isostring
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}

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parse(value, formatString) {
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  if (value === '') {
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    return null;
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  }
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  return dateFnsParse(value, formatString, new Date());
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}

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getISOTimestamp(date) {
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  return date.toISOString().split('.')[0] + 'Z';
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}

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export function parseDate(d: string): Date {
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  const matches = d.match(/\d+/);
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  return new Date(parseInt(matches![0], 10));
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}

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function parseDateFormat2(str) {
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  // 2010/31/2
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  const m = str.match(/^(\d{4})[/\s.\-,](\d{1,2})[/\s.\-,](\d{1,2})$/);
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  return (m) ? new Date(m[1], m[2] - 1, m[3]) : NaN;
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}