10 examples of 'date format in react js' in JavaScript

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139function getDate(dateObj) {
140 var date;
141 if (typeof dateObj.diff === 'function') {
142 date = dateObj.toDate();
143 } else {
144 date = new Date(dateObj.year, dateObj.month - 1, dateObj.day);
145 }
146 return new Moment(date).unix() * 1000;
147}
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23function useDateValues(props: BasePickerProps, options: StateHookOptions) {
24 const utils = useUtils();
25 const date = useValueToDate(utils, props);
26 const format = props.format || options.getDefaultFormat();
27
28 return { date, format };
29}
117export function useFormatDate(date: Date): string {
118 return format(date, getState().format);
119}
3export default function formatDate (date) {
4 return format(date, 'MM-dd');
5}
16export function actualDate(date) {
17 return new Date(flatpickr.parseDate(date, DATE_FORMAT));
18}
182getDateInstance( v ) {
183 return this.props.moment( v ).toDate();
184}
159static getDerivedStateFromProps(nextProps, prevState) {
160 const { selectedDate, value } = nextProps;
161 let nextDateValue = selectedDate;
162
163 // Use the value for a controlled component if one is provided.
164 if (value !== undefined && value !== null) {
165 nextDateValue = value;
166 }
167
168 if (nextDateValue !== prevState.prevPropsSelectedDate) {
169 const nextSelectedDate = DateUtil.createSafeDate(nextDateValue);
170
171 if (nextSelectedDate) {
172 return {
173 selectedDate: nextSelectedDate,
174 prevPropsSelectedDate: nextDateValue,
175 };
176 }
177
178 return {
179 prevPropsSelectedDate: nextDateValue,
180 };
181 }
182
183 return null;
184}
14function DynamicDateInput(props) {
15 const {
16 additionalLabel,
17 focus,
18 id,
19 jsDateFormat,
20 label,
21 locale,
22 required,
23 } = props;
24
25 const { data, setData, ui } = React.useContext(DynamicLayoutContext);
26 const value = Object.getByString(data, id);
27
28 return React.useMemo(() => {
29 const handleDayChange = day => setData({
30 [id]: day ? timezone(day)
31 .format('YYYY-MM-DD') : null,
32 });
33
34 return (
35 <React.Fragment>
36 <span className={style.dayPickerLabel}>{label}</span>
37 <DynamicValidationManager id={id}>
38 <DayPickerInput
39 autoFocus={focus}
40 formatDate={formatDate}
41 parseDate={parseDate}
42 format={jsDateFormat}
43 value={value}
44 onDayChange={handleDayChange}
45 dayPickerProps={{
46 locale,
47 localeUtils: MomentLocaleUtils,
48 todayButton: ui.translations['calendar.today'],
49 }}
50 placeholder={jsDateFormat}
51 required={required}
52 />
53 <AdditionalLabel title={additionalLabel} />
54 </DynamicValidationManager>
55 </React.Fragment>
56 );
57 }, [props, value, setData]);
58}
150function getDateString(date) {
151 return format(date, 'yyyy-MM-dd');
152}
41export function checkDateValue(props, propName, componentName) {
42 // 支持传入 moment 对象或字符串,字符串不检测是否为日期字符串
43 if (
44 props[propName] &&
45 !moment.isMoment(props[propName]) &&
46 typeof props[propName] !== 'string'
47 ) {
48 return new Error(
49 `Invalid prop ${propName} supplied to ${componentName}. Required a moment object or format date string!`
50 );
51 }
52}

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