created() { this.tagsAsArray.forEach((item) => { this.editState[item] = false; }); },
Vue cannot detect property addition or deletion.
created() {
this.editState = Object.fromEntries(this.tagsAsArray.map(n => [ n, false ]));
},
@onClick="editTagName"
<select id="event"></select>
<select id="dates"></select>
const events = [
{ name: '...', dates: [ ... ] },
{ name: '...', dates: [ ... ] },
...
];
const eventEl = document.querySelector('#event');
const datesEl = document.querySelector('#dates');
eventEl.innerHTML = events
.map((n, i) => `<option value="${i}">${n.name}</option>`)
.join('');
eventEl.addEventListener('change', function() {
datesEl.innerHTML = events[this.value].dates
.map(n => `<option>${n}</option>`)
.join('');
});
eventEl.dispatchEvent(new Event('change'));
methods: {
weekDay(date) {
return new Date(date).toLocaleString('ru-RU', { weekday: 'short' });
},
titleDate(dates) {
return dates
.map(n => new Date(n).toLocaleString('ru-RU', {
weekday: 'short',
month: 'short',
day: 'numeric',
}))
.join(' - ');
},
},
<v-date-picker
:weekday-format="weekDay"
:title-date-format="titleDate"
/>
const getDuplicates = (arr, key) => Array
.from(arr.reduce((acc, { [key]: n }) => acc.set(n, -~acc.get(n)), new Map))
.filter(n => n[1] > 1)
.map(n => n[0]);
const duplicates = getDuplicates(arr, 1);
const getDuplicates = (arr, key = n => n) => Array
.from(arr.reduce((acc, n) => (n = key(n), acc.set(n, acc.has(n))), new Map))
.reduce((acc, n) => (n[1] && acc.push(n[0]), acc), []);
const duplicates = getDuplicates(arr, n => n[1]);
const getDuplicates = arr =>
[...arr.reduce((acc, n) => (
acc[+acc[0].has(n)].add(n),
acc
), [ new Set, new Set ])[1]];
const duplicates = getDuplicates(arr.map(n => n[1]));
Не поможет ли lodash?
const duplicates = _(arr)
.map(n => n[1])
.groupBy()
.filter(n => n.length > 1)
.map(n => n[0])
.value();
std::string encodeString(std::string str) {
std::string result = "";
int count = 0;
int len = str.length();
for (int i = 0; i < len; i++) {
count++;
if (i == len - 1 || str[i] != str[i + 1]) {
result += str[i] + std::to_string(count);
count = 0;
}
}
return result;
}
async function processData(data) {
const result = [];
for (const { id, k } of data) {
result.push(k ? await api.getData(id) : id);
}
return result;
}
function processData(data) {
return Promise.all(data.map(({ id, k }) => k ? api.getData(id) : id));
}
def get_min_value(materials):
return min(m for n in materials for m in n.values())
def filter_materials(materials, min_value):
return [ n for n in materials if all(m >= min_value for m in n.values()) ]
materials_in_stock = filter_materials(materials_in_stock, get_min_value(required_material))