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hasCoadjacentSameStateCells checks

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Azgaar 2022-05-14 14:34:21 +03:00
parent b92c8b6ae9
commit 2327aa980c
3 changed files with 33 additions and 44 deletions
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52
utils/arrayUtils.js
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@ -6,45 +6,39 @@ function last(array) {
return array[array.length - 1];
}
// return array of values common for both array a and array b
function common(a, b) {
const setB = new Set(b);
return [...new Set(a)].filter(a => setB.has(a));
}
function unique(array) {
return [...new Set(array)];
}
// deep copy for Arrays (and other objects)
function deepCopy(obj) {
const id = x=>x;
const id = x => x;
const dcTArray = a => a.map(id);
const dcObject = x => Object.fromEntries(Object.entries(x).map(([k,d])=>[k,dcAny(d)]));
const dcAny = x => x instanceof Object ? (cf.get(x.constructor)||id)(x) : x;
const dcObject = x => Object.fromEntries(Object.entries(x).map(([k, d]) => [k, dcAny(d)]));
const dcAny = x => (x instanceof Object ? (cf.get(x.constructor) || id)(x) : x);
// don't map keys, probably this is what we would expect
const dcMapCore = m => [...m.entries()].map(([k,v])=>[k, dcAny(v)]);
const dcMapCore = m => [...m.entries()].map(([k, v]) => [k, dcAny(v)]);
const cf = new Map([
[Int8Array, dcTArray],
[Uint8Array, dcTArray],
[Uint8ClampedArray, dcTArray],
[Int16Array, dcTArray],
[Uint16Array, dcTArray],
[Int32Array, dcTArray],
[Uint32Array, dcTArray],
[Float32Array, dcTArray],
[Float64Array, dcTArray],
[BigInt64Array, dcTArray],
[BigUint64Array, dcTArray],
[Map, m => new Map(dcMapCore(m))],
[WeakMap, m => new WeakMap(dcMapCore(m))],
[Array, a => a.map(dcAny)],
[Set, s => [...s.values()].map(dcAny)],
[Date, d => new Date(d.getTime())],
[Object, dcObject],
// other types will be referenced
// ... extend here to implement their custom deep copy
[Int8Array, dcTArray],
[Uint8Array, dcTArray],
[Uint8ClampedArray, dcTArray],
[Int16Array, dcTArray],
[Uint16Array, dcTArray],
[Int32Array, dcTArray],
[Uint32Array, dcTArray],
[Float32Array, dcTArray],
[Float64Array, dcTArray],
[BigInt64Array, dcTArray],
[BigUint64Array, dcTArray],
[Map, m => new Map(dcMapCore(m))],
[WeakMap, m => new WeakMap(dcMapCore(m))],
[Array, a => a.map(dcAny)],
[Set, s => [...s.values()].map(dcAny)],
[Date, d => new Date(d.getTime())],
[Object, dcObject]
// other types will be referenced
// ... extend here to implement their custom deep copy
]);
return dcAny(obj);