1 | /**
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2 | * Logs to the console.
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3 | * @param {*} message The object to log.
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4 | * @param {undefined | 'debug' | 'warn' | 'error'} level The level to log at.
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5 | */
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6 | export function log(message, level = undefined) {
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7 | if (process.env.NODE_ENV !== "production") {
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8 | if (level === "error") {
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9 | console.error(message);
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10 | }
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11 | else if (level === "warn") {
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12 | console.warn(message);
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13 | }
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14 | else if (level === "info") {
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15 | console.log(message);
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16 | }
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17 | else if (level === "debug") {
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18 | console.debug(message);
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19 | }
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20 | else {
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21 | console.debug(message);
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22 | }
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23 | }
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24 | }
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25 |
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26 | export default class Util {
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27 | static lut = [];
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28 |
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29 | /**
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30 | * When awaited, creates a delay for the given number of milliseconds.
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31 | * @param {Number} delayMilliseconds The number of milliseconds to delay for.
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32 | * @returns A promise that will resolve when the delay has finished.
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33 | */
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34 | static delay(delayMilliseconds) {
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35 | return new Promise(
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36 | resolve => {
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37 | setTimeout(
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38 | () => {
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39 | resolve(2);
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40 | },
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41 | delayMilliseconds
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42 | );
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43 | }
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44 | );
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45 | }
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46 |
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47 | /**
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48 | * Fast UUID generator, RFC4122 version 4 compliant.
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49 | * @author Jeff Ward (jcward.com).
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50 | * @license MIT
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51 | * @link http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript/21963136#21963136
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52 | **/
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53 | static generateUuid() {
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54 | if (this.lut.length === 0) {
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55 | for (var i = 0; i < 256; i++) {
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56 | this.lut[i] = (i < 16 ? "0" : "") + (i).toString(16);
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57 | }
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58 | }
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59 |
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60 | var d0 = Math.random() * 0xffffffff | 0;
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61 | var d1 = Math.random() * 0xffffffff | 0;
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62 | var d2 = Math.random() * 0xffffffff | 0;
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63 | var d3 = Math.random() * 0xffffffff | 0;
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64 |
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65 | return this.lut[d0 & 0xff] + this.lut[d0 >> 8 & 0xff] + this.lut[d0 >> 16 & 0xff] + this.lut[d0 >> 24 & 0xff] + "-" +
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66 | this.lut[d1 & 0xff] + this.lut[d1 >> 8 & 0xff] + "-" + this.lut[d1 >> 16 & 0x0f | 0x40] + this.lut[d1 >> 24 & 0xff] + "-" +
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67 | this.lut[d2 & 0x3f | 0x80] + this.lut[d2 >> 8 & 0xff] + "-" + this.lut[d2 >> 16 & 0xff] + this.lut[d2 >> 24 & 0xff] +
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68 | this.lut[d3 & 0xff] + this.lut[d3 >> 8 & 0xff] + this.lut[d3 >> 16 & 0xff] + this.lut[d3 >> 24 & 0xff];
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69 | }
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70 |
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71 | /**
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72 | * Formats a number of seconds into a time string.
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73 | * @param {Number} seconds The number of seconds.
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74 | * @param {Boolean} includeHoursIfNone Defines whether to include the hours component if it is empty.
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75 | * @param {Number} fractionDigits The number of millisecond digits to include in the time string.
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76 | * @returns {String} The formatted time string.
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77 | */
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78 | static formatSecondsTimeString(seconds, includeHoursIfNone, fractionDigits = 3) {
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79 | const hours = (seconds / 3600) | 0;
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80 | const minutes = ((seconds - (hours * 60)) / 60) | 0;
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81 | const actualSeconds = seconds - (minutes * 60);
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82 |
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83 | let result = "";
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84 |
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85 | if (includeHoursIfNone) {
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86 | result = hours.toLocaleString("en-US", { maximumFractionDigits: 0, minimumIntegerDigits: 2 }) + ":";
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87 | }
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88 | else if (!includeHoursIfNone && hours > 0) {
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89 | result = hours.toLocaleString("en-US", { maximumFractionDigits: 0, minimumIntegerDigits: 2 }) + ":";
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90 | }
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91 |
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92 | result += minutes.toLocaleString("en-US", { maximumFractionDigits: 0, minimumIntegerDigits: 2 });
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93 | result += ":" + actualSeconds.toLocaleString("en-US", { minimumFractionDigits: fractionDigits, maximumFractionDigits: fractionDigits, minimumIntegerDigits: 2 });
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94 |
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95 | return result;
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96 | }
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97 | }
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