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alex
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fb72bb2290
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13
index.html
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13
index.html
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<!DOCTYPE html>
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<html>
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<head>
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<title>Bingo</title>
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</head>
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<body>
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<button onclick="foo()">hello</button>
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<button onclick="bar()">hello</button>
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<script type="module" src="./js/strudel.js"></script>
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</body>
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</html>
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0
js/package.json
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0
js/package.json
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138
js/strudel.js
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138
js/strudel.js
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import Fraction from 'fraction.js'
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Fraction.prototype.sam = function() {
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return Fraction(Math.floor(this))
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}
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Fraction.prototype.lt = function(other) {
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return this.compare(other) < 0
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}
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Fraction.prototype.lte = function(other) {
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return this.compare(other) <= 0
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}
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Fraction.prototype.gte = function(other) {
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return this.compare(other) >= 0
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}
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class TimeSpan {
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constructor(begin, end) {
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this.begin = Fraction(begin)
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this.end = Fraction(end)
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}
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get spanCycles() {
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var spans = []
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var begin = this.begin
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var end = this.end
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var end_sam = end.sam()
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while (end.gt(begin)) {
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// If begin and end are in the same cycle, we're done.
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if (begin.sam() == end_sam) {
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spans.push(new TimeSpan(begin, this.end))
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break
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}
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// add a timespan up to the next sam
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var next_begin = begin.next_sam()
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spans.push(TimeSpan(begin, next_begin))
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// continue with the next cycle
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begin = next_begin
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}
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return(spans)
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}
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withTime(func_time) {
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// Applies given function to both the begin and end time value of the timespan"""
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return(new TimeSpan(func_time(this.begin), func_time(this.end)))
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}
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intersection(other) {
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// Intersection of two timespans, returns None if they don't intersect.
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intersect_begin = Math.max(this.begin, other.begin)
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intersect_end = Math.min(this.end, other.end)
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if (intersect_begin.gt(intersect_end)) {
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return(undefined)
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}
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if (intersect_begin.equals(intersect_end)) {
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// Zero-width (point) intersection - doesn't intersect if it's at the end of a
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// non-zero-width timespan.
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if (intersect_begin.equals(this.end) && this.begin.lt(this.end)) {
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return(undefined)
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}
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if (intersect_begin.equals(other.end) && other.begin.lt(other.end)) {
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return(undefined)
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}
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}
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return(new TimeSpan(intersect_begin, intersect_end))
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}
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intersection_e(other) {
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// Like 'sect', but raises an exception if the timespans don't intersect.
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result = this.intersection(other)
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if (result == None) {
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// TODO - raise exception
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// raise ValueError(f'TimeSpan {self} and TimeSpan {other} do not intersect')
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}
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return(result)
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}
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get midpoint() {
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return(this.begin.add((this.end.sub(this.begin)).div(Fraction(2))))
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}
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equals(other) {
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return this.begin.equals(other.begin) && this.end.equals(other.end)
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}
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}
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class Event {
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/*
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Event class, representing a value active during the timespan
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'part'. This might be a fragment of an event, in which case the
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timespan will be smaller than the 'whole' timespan, otherwise the
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two timespans will be the same. The 'part' must never extend outside of the
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'whole'. If the event represents a continuously changing value
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then the whole will be returned as None, in which case the given
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value will have been sampled from the point halfway between the
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start and end of the 'part' timespan.
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*/
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constructor(whole, part, value) {
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this.whole = whole
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this.part = part
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this.value = value
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}
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with_span(func) {
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// Returns a new event with the function f applies to the event timespan.
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var whole = this.whole ? func(self.whole) : undefined
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return new Event(whole, func(this.part), this.value)
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}
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with_value(func) {
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// Returns a new event with the function f applies to the event value.
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return new Event(this.whole, this.part, func(this.value))
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}
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has_onset() {
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// Test whether the event contains the onset, i.e that
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// the beginning of the part is the same as that of the whole timespan."""
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return (this.whole != undefined) && (this.whole.begin == this.part.begin)
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}
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}
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window.bar = function() {
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console.log("aha" + typeof(Fraction(3.5)));
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}
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//console.log((new TimeSpan(3.5,4)).midpoint);
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var ts = new TimeSpan(0,4)
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console.log((new Event(new TimeSpan(0,2), new TimeSpan(0,2), "aha")).has_onset());
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var x = new TimeSpan(0,4)
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console.log(ts.equals(x))
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53
package-lock.json
generated
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53
package-lock.json
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{
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"name": "strudel",
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"version": "1.0.0",
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"lockfileVersion": 2,
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"requires": true,
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"packages": {
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"": {
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"name": "strudel",
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"version": "1.0.0",
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"license": "GPL-3.0-or-later",
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"devDependencies": {
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"fraction": "^0.2.0",
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"fraction.js": "^4.1.2"
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}
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},
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"node_modules/fraction": {
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"version": "0.2.0",
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"resolved": "https://registry.npmjs.org/fraction/-/fraction-0.2.0.tgz",
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"integrity": "sha1-ZassG7bt+JmJ2B1Q8FJeX6J7Hkw=",
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"dev": true,
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"engines": {
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"node": ">= 0.6.0"
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}
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},
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"node_modules/fraction.js": {
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"version": "4.1.2",
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"resolved": "https://registry.npmjs.org/fraction.js/-/fraction.js-4.1.2.tgz",
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"integrity": "sha512-o2RiJQ6DZaR/5+Si0qJUIy637QMRudSi9kU/FFzx9EZazrIdnBgpU+3sEWCxAVhH2RtxW2Oz+T4p2o8uOPVcgA==",
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"dev": true,
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"engines": {
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"node": "*"
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},
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"funding": {
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"type": "patreon",
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"url": "https://www.patreon.com/infusion"
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}
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}
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},
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"dependencies": {
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"fraction": {
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"version": "0.2.0",
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"resolved": "https://registry.npmjs.org/fraction/-/fraction-0.2.0.tgz",
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"integrity": "sha1-ZassG7bt+JmJ2B1Q8FJeX6J7Hkw=",
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"dev": true
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},
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"fraction.js": {
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"version": "4.1.2",
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"resolved": "https://registry.npmjs.org/fraction.js/-/fraction.js-4.1.2.tgz",
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"integrity": "sha512-o2RiJQ6DZaR/5+Si0qJUIy637QMRudSi9kU/FFzx9EZazrIdnBgpU+3sEWCxAVhH2RtxW2Oz+T4p2o8uOPVcgA==",
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"dev": true
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}
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}
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}
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29
package.json
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29
package.json
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{
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"name": "strudel",
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"version": "1.0.0",
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"description": "Experimental port of tidalcycles to javascript",
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"main": "index.js",
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"scripts": {
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"test": "mocha"
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},
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"repository": {
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"type": "git",
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"url": "git+https://github.com/yaxu/strudel.git"
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},
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"keywords": [
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"tidalcycles",
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"strudel",
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"pattern",
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"livecoding",
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"algorave"
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],
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"author": "Alex McLean",
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"license": "GPL-3.0-or-later",
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"bugs": {
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"url": "https://github.com/yaxu/strudel/issues"
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},
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"homepage": "https://github.com/yaxu/strudel#readme",
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"devDependencies": {
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"fraction.js": "^4.1.2"
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}
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}
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