const isValid = arr =>
arr.every(n => Object.values(n).every(m => !m.isRequired || m.value));function isValid(arr) {
for (const n of arr) {
for (const k in n) {
if (n.hasOwnProperty(k) && n[k].isRequired && !n[k].value) {
return false;
}
}
}
return true;
}почему-то не работает
new Swiper?
Городить кучу проверок?
const arrs = [ arr1, arr2, arr3 ];. И тогда проверку можно будет написать один раз для всех:const result = arrs.filter(Array.isArray).flat();
// или
const result = arrs.reduce((acc, n) => (
n instanceof Array && acc.push(...n),
acc
), []);// ...прилегают к первой кнопке
const showAfterFirst = currentPage < 5;
// ...прилегают к последней кнопке
const showBeforeLast = currentPage > totalPages - 4;!showAfterFirst и !showBeforeLast. А чтобы отобразить центральную группу кнопок, оба базовых условия должны быть ложными: !(showAfterFirst || showBeforeLast).
условно говоря юниор средняя около 30-40к
This method exists for rare use cases where the state depends on changes in props over time. For example, it might be handy for implementing a component that compares its previous and next children to decide which of them to animate in and out.
<script type="module">, в нем будет объект guisvar guis = {
// ....
IcosahedronGeometry: function ( mesh ) {
var data = {
radius: 10,
detail: 0
};
function generateGeometry() {
updateGroupGeometry( mesh,
new IcosahedronGeometry(
data.radius, data.detail
)
);
}
var folder = gui.addFolder( 'THREE.IcosahedronGeometry' );
folder.add( data, 'radius', 1, 20 ).onChange( generateGeometry );
folder.add( data, 'detail', 0, 5 ).step( 1 ).onChange( generateGeometry );
generateGeometry();
},
// ....
}
const meshes = [
new THREE.BoxGeometry(),
new THREE.SphereGeometry(),
new THREE.CylinderGeometry(),
new THREE.ConeGeometry(),
new THREE.IcosahedronGeometry(),
new THREE.OctahedronGeometry(),
new THREE.TorusGeometry(),
new THREE.TorusKnotGeometry(),
new THREE.DodecahedronGeometry(),
].map(geometry => new THREE.Mesh( geometry, materials ));face геометрии есть materialIndex, смотрим на них:console.log(meshes.map(mat => [
mat.geometry.type,
mat.geometry.faces.map(face => face.materialIndex).join('')
]));0: (2) ["BoxGeometry", "001122334455"]
1: (2) ["SphereGeometry", "00000000000000000000000000000000000000000000000000000000000000000000000000000000"]
2: (2) ["CylinderGeometry", "00000000000000001111111122222222"]
3: (2) ["ConeGeometry", "0000000022222222"]
4: (2) ["IcosahedronGeometry", "00000000000000000000"]
5: (2) ["OctahedronGeometry", "00000000"]
6: (2) ["TorusGeometry", "000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"]
7: (2) ["TorusKnotGeometry", "00000000000000000000000000000000000000000000000000…0000000000000000000000000000000000000000000000000"]
8: (2) ["DodecahedronGeometry", "000000000000000000000000000000000000"]
