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42 lines
1.1 KiB
JavaScript

'use strict';
const assert = require('assert');
module.exports = function castDate(value) {
// Support empty string because of empty form values. Originally introduced
// in https://github.com/Automattic/mongoose/commit/efc72a1898fc3c33a319d915b8c5463a22938dfe
if (value == null || value === '') {
return null;
}
if (value instanceof Date) {
assert.ok(!isNaN(value.valueOf()));
return value;
}
let date;
assert.ok(typeof value !== 'boolean');
if (value instanceof Number || typeof value === 'number') {
date = new Date(value);
} else if (typeof value === 'string' && !isNaN(Number(value)) && (Number(value) >= 275761 || Number(value) < -271820)) {
// string representation of milliseconds take this path
date = new Date(Number(value));
} else if (typeof value.valueOf === 'function') {
// support for moment.js. This is also the path strings will take because
// strings have a `valueOf()`
date = new Date(value.valueOf());
} else {
// fallback
date = new Date(value);
}
if (!isNaN(date.valueOf())) {
return date;
}
assert.ok(false);
};