ts-math-utils

<!doctype html> <html lang="en"> <head> <title>Code coverage report for range.ts</title> <meta charset="utf-8" /> <link rel="stylesheet" href="prettify.css" /> <link rel="stylesheet" href="base.css" /> <link rel="shortcut icon" type="image/x-icon" href="favicon.png" /> <meta name="viewport" content="width=device-width, initial-scale=1" /> <style type='text/css'> .coverage-summary .sorter { background-image: url(sort-arrow-sprite.png); } </style> </head> <body> <div class='wrapper'> <div class='pad1'> <h1><a href="index.html">All files</a> range.ts</h1> <div class='clearfix'> <div class='fl pad1y space-right2'> <span class="strong">100% </span> <span class="quiet">Statements</span> <span class='fraction'>43/43</span> </div> <div class='fl pad1y space-right2'> <span class="strong">100% </span> <span class="quiet">Branches</span> <span class='fraction'>36/36</span> </div> <div class='fl pad1y space-right2'> <span class="strong">100% </span> <span class="quiet">Functions</span> <span class='fraction'>3/3</span> </div> <div class='fl pad1y space-right2'> <span class="strong">100% </span> <span class="quiet">Lines</span> <span class='fraction'>39/39</span> </div> </div> <p class="quiet"> Press <em>n</em> or <em>j</em> to go to the next uncovered block, <em>b</em>, <em>p</em> or <em>k</em> for the previous block. </p> <template id="filterTemplate"> <div class="quiet"> Filter: <input type="search" id="fileSearch"> </div> </template> </div> <div class='status-line high'></div> <pre><table class="coverage"> <tr><td class="line-count quiet"><a name='L1'></a><a href='#L1'>1</a> <a name='L2'></a><a href='#L2'>2</a> <a name='L3'></a><a href='#L3'>3</a> <a name='L4'></a><a href='#L4'>4</a> <a name='L5'></a><a href='#L5'>5</a> <a name='L6'></a><a href='#L6'>6</a> <a name='L7'></a><a href='#L7'>7</a> <a name='L8'></a><a href='#L8'>8</a> <a name='L9'></a><a href='#L9'>9</a> <a name='L10'></a><a href='#L10'>10</a> <a name='L11'></a><a href='#L11'>11</a> <a name='L12'></a><a href='#L12'>12</a> <a name='L13'></a><a href='#L13'>13</a> <a name='L14'></a><a href='#L14'>14</a> <a name='L15'></a><a href='#L15'>15</a> <a name='L16'></a><a href='#L16'>16</a> <a name='L17'></a><a href='#L17'>17</a> <a name='L18'></a><a href='#L18'>18</a> <a name='L19'></a><a href='#L19'>19</a> <a name='L20'></a><a href='#L20'>20</a> <a name='L21'></a><a href='#L21'>21</a> <a name='L22'></a><a href='#L22'>22</a> <a name='L23'></a><a href='#L23'>23</a> <a name='L24'></a><a href='#L24'>24</a> <a name='L25'></a><a href='#L25'>25</a> <a name='L26'></a><a href='#L26'>26</a> <a name='L27'></a><a href='#L27'>27</a> <a name='L28'></a><a href='#L28'>28</a> <a name='L29'></a><a href='#L29'>29</a> <a name='L30'></a><a href='#L30'>30</a> <a name='L31'></a><a href='#L31'>31</a> <a name='L32'></a><a href='#L32'>32</a> <a name='L33'></a><a href='#L33'>33</a> <a name='L34'></a><a href='#L34'>34</a> <a name='L35'></a><a href='#L35'>35</a> <a name='L36'></a><a href='#L36'>36</a> <a name='L37'></a><a href='#L37'>37</a> <a name='L38'></a><a href='#L38'>38</a> <a name='L39'></a><a href='#L39'>39</a> <a name='L40'></a><a href='#L40'>40</a> <a name='L41'></a><a href='#L41'>41</a> <a name='L42'></a><a href='#L42'>42</a> <a name='L43'></a><a href='#L43'>43</a> <a name='L44'></a><a href='#L44'>44</a> <a name='L45'></a><a href='#L45'>45</a> <a name='L46'></a><a href='#L46'>46</a> <a name='L47'></a><a href='#L47'>47</a> <a name='L48'></a><a href='#L48'>48</a> <a name='L49'></a><a href='#L49'>49</a> <a name='L50'></a><a href='#L50'>50</a> <a name='L51'></a><a href='#L51'>51</a> <a name='L52'></a><a href='#L52'>52</a> <a name='L53'></a><a href='#L53'>53</a> <a name='L54'></a><a href='#L54'>54</a> <a name='L55'></a><a href='#L55'>55</a> <a name='L56'></a><a href='#L56'>56</a> <a name='L57'></a><a href='#L57'>57</a> <a name='L58'></a><a href='#L58'>58</a> <a name='L59'></a><a href='#L59'>59</a> <a name='L60'></a><a href='#L60'>60</a> <a name='L61'></a><a href='#L61'>61</a> <a name='L62'></a><a href='#L62'>62</a> <a name='L63'></a><a href='#L63'>63</a> <a name='L64'></a><a href='#L64'>64</a> <a name='L65'></a><a href='#L65'>65</a> <a name='L66'></a><a href='#L66'>66</a> <a name='L67'></a><a href='#L67'>67</a> <a name='L68'></a><a href='#L68'>68</a> <a name='L69'></a><a href='#L69'>69</a> <a name='L70'></a><a href='#L70'>70</a> <a name='L71'></a><a href='#L71'>71</a> <a name='L72'></a><a href='#L72'>72</a> <a name='L73'></a><a href='#L73'>73</a> <a name='L74'></a><a href='#L74'>74</a></td><td class="line-coverage quiet"><span class="cline-any cline-yes">1x</span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-yes">36x</span> <span class="cline-any cline-yes">35x</span> <span class="cline-any cline-yes">35x</span> <span class="cline-any cline-yes">4x</span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-yes">1x</span> <span class="cline-any cline-yes">21x</span> <span class="cline-any cline-yes">21x</span> <span class="cline-any cline-yes">21x</span> <span class="cline-any cline-yes">20x</span> <span class="cline-any cline-yes">20x</span> <span class="cline-any cline-yes">20x</span> <span class="cline-any cline-yes">20x</span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-yes">20x</span> <span class="cline-any cline-yes">8x</span> <span class="cline-any cline-yes">8x</span> <span class="cline-any cline-yes">8x</span> <span class="cline-any cline-yes">8x</span> <span class="cline-any cline-yes">8x</span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-yes">8x</span> <span class="cline-any cline-yes">8x</span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-yes">8x</span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-yes">32x</span> <span class="cline-any cline-yes">31x</span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-yes">7x</span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-yes">12x</span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-yes">12x</span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-yes">12x</span> <span class="cline-any cline-yes">12x</span> <span class="cline-any cline-yes">12x</span> <span class="cline-any cline-yes">12x</span> <span class="cline-any cline-yes">12x</span> <span class="cline-any cline-yes">12x</span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-yes">12x</span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-yes">12x</span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-yes">49x</span> <span class="cline-any cline-yes">48x</span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-yes">1x</span> <span class="cline-any cline-yes">1x</span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">import { Interval, IInterval, NumericValue } from './interval';   /** * Returns an iterable generator for numbers or bigints in the interval, stepping by `step`. * Uses integer math for decimals, and native bigint math for bigints. */ function getDecimalPlaces(x: number): number { if (typeof x !== 'number' || !isFinite(x)) return 0; const s = x.toString(); if (!s.includes('.')) return 0; return s.split('.')[1].length; }   export function range(interval: IInterval | string, step: NumericValue = 1): Iterable<NumericValue> { return (function* () { try { const intvl = new Interval(interval); const start = intvl.a.number; const end = intvl.b.number; const startClosed = intvl.a.isClosed; const endClosed = intvl.b.isClosed;   // If any value is bigint, use bigint math if (typeof start === 'bigint' || typeof end === 'bigint' || typeof step === 'bigint') { const startBig = BigInt(start); const endBig = end !== Infinity ? BigInt(end) : end; const absStepBig = BigInt(step) < 0n ? -BigInt(step) : BigInt(step); const ascending = endBig > startBig; const actualStep = ascending ? absStepBig : -absStepBig;   let current = startBig; if (!startClosed) current += actualStep;   while ( (ascending && ((current < endBig) || (endClosed && current === endBig))) || (!ascending && ((current > endBig) || (endClosed && current === endBig))) ) { yield current; current += actualStep; } return; }   // Otherwise, use number math with integer scaling for decimals const decimals = Math.max( getDecimalPlaces(Number(start)), getDecimalPlaces(Number(end)), getDecimalPlaces(Number(step)) ); const factor = Math.pow(10, decimals);   let current = Math.round(Number(start) * factor); const endInt = Math.round(Number(end) * factor); const absStep = Math.abs(Number(step)); const stepInt = Math.round(absStep * factor); const ascending = end > start; const actualStep = ascending ? stepInt : -stepInt;   if (!startClosed) current += actualStep;   while ( (ascending && ((current < endInt) || (endClosed && current === endInt))) || (!ascending && ((current > endInt) || (endClosed && current === endInt))) ) { yield current / factor; current += actualStep; } } catch (error: Error | unknown) { if (error instanceof Error) { throw new Error(`Invalid interval: ${error.message}`); } } })(); }</pre></td></tr></table></pre> <div class='push'></div> </div> <div class='footer quiet pad2 space-top1 center small'> Code coverage generated by <a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a> at 2025-06-29T19:25:41.703Z </div> <script src="prettify.js"></script> <script> window.onload = function () { prettyPrint(); }; </script> <script src="sorter.js"></script> <script src="block-navigation.js"></script> </body> </html>