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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>JS Number Methods</title>
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<hr />
<h3>JS Number Methods</h3>
<p>
These <strong>number methods</strong> can be used on all
JavaScript numbers:
</p>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Method</th>
<th>Description</th>
</tr>
<tr>
<td>toString()</td>
<td>Returns a number as a string</td>
</tr>
<tr>
<td>toExponential()</td>
<td>Returns a number written in exponential notation</td>
</tr>
<tr>
<td>toFixed()</td>
<td>Returns a number written with a number of decimals</td>
</tr>
<tr>
<td>toPrecision()</td>
<td>Returns a number written with a specified length</td>
</tr>
<tr>
<td>ValueOf()</td>
<td>Returns a number as a number</td>
</tr>
</tbody>
</table>
<pre
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><code class="language-markup"><span class="token doctype"><span class="token punctuation"><!</span><span class="token doctype-tag">DOCTYPE</span> <span class="token name">html</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>html</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>head</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>title</span><span class="token punctuation">></span></span>JavaScript<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>title</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>script</span><span class="token punctuation">></span></span><span class="token script"><span class="token language-javascript">
<span class="token keyword">var</span> a <span class="token operator">=</span> <span class="token string">"99"</span><span class="token punctuation">;</span>
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document<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span>num <span class="token operator">+</span> <span class="token number">10</span> <span class="token operator">+</span><span class="token string">"<br>"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">var</span> b <span class="token operator">=</span> <span class="token boolean">true</span><span class="token punctuation">;</span>
<span class="token keyword">var</span> num <span class="token operator">=</span> <span class="token function">Number</span><span class="token punctuation">(</span>b<span class="token punctuation">)</span><span class="token punctuation">;</span>
document<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span>num <span class="token operator">+</span><span class="token string">"<br>"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
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<span class="token keyword">var</span> c <span class="token operator">=</span> <span class="token string">"10.00"</span><span class="token punctuation">;</span>
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<span class="token comment">/* ParesFloat Method */</span>
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<span class="token comment">/* IsFinite Method */</span>
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<span class="token comment">/* IsInteger Method */</span>
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<span class="token comment">/* ToFixed Method */</span>
<span class="token keyword">var</span> y <span class="token operator">=</span> <span class="token number">5.56789</span><span class="token punctuation">;</span>
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<span class="token comment">/* ToPrecision Method */</span>
<span class="token keyword">var</span> z <span class="token operator">=</span> <span class="token number">5.56789</span><span class="token punctuation">;</span>
<span class="token keyword">var</span> num <span class="token operator">=</span> z<span class="token punctuation">.</span><span class="token function">toPrecision</span><span class="token punctuation">(</span><span class="token number">3</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
document<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span>num <span class="token operator">+</span> <span class="token string">"<br>"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
</span></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>script</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>head</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>body</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>body</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>html</span><span class="token punctuation">></span></span>
</code></pre>
<hr />
</body>
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