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move some utilities to utils.mjs

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This commit is contained in:
alex 2022-04-13 09:03:31 +01:00
parent fb826bed70
commit 9eba883978
3 changed files with 32 additions and 32 deletions
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32
packages/core/strudel.mjs
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@ -1,35 +1,5 @@
import Fraction from './fraction.mjs';
import { isNote, toMidi, compose } from './util.mjs';
// Removes 'None' values from given list
const removeUndefineds = (xs) => xs.filter((x) => x != undefined);
const flatten = (arr) => [].concat(...arr);
const id = (a) => a;
const listRange = (min, max) => Array.from({ length: max - min + 1 }, (_, i) => i + min);
export function curry(func, overload) {
const fn = function curried(...args) {
if (args.length >= func.length) {
return func.apply(this, args);
} else {
const partial = function (...args2) {
return curried.apply(this, args.concat(args2));
};
if (overload) {
overload(partial, args);
}
return partial;
}
};
if (overload) {
// overload function without args... needed for chordBass.transpose(2)
overload(fn, []);
}
return fn;
}
import { isNote, toMidi, compose, removeUndefineds, flatten, id, listRange, curry } from './util.mjs';
class TimeSpan {
constructor(begin, end) {