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JavaScript

JS memory size object/array

/* cruel way to sum your global vars */

function roughSizeOfObject( object ) {

	var objectList = [];
	var stack = [ object ];
	var bytes = 0;
	
	while ( stack.length ) {
	var value = stack.pop();
	
	if ( typeof value === 'boolean' ) { bytes += 4; }
	else if ( typeof value === 'string' ) { bytes += value.length * 2; }
	else if ( typeof value === 'number' ) { bytes += 8; }
	else if
	(
	typeof value === 'object'
	&& objectList.indexOf( value ) === -1
	)
	{
	objectList.push( value );
	
	for( i in value ) { stack.push( value[ i ] ); }
	}
	}
	return bytesToSize(bytes);
}
https://snipt.net/embed/7d71e904d30e1a8149ce8517a9c74715/
/raw/7d71e904d30e1a8149ce8517a9c74715/
7d71e904d30e1a8149ce8517a9c74715
js
JavaScript
27
2019-08-20T06:05:47
True
False
False
Oct 23, 2012 at 05:09 AM
/api/public/snipt/48905/
js-memory-size-objectarray
<table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><a href="#L-1"> 1</a> <a href="#L-2"> 2</a> <a href="#L-3"> 3</a> <a href="#L-4"> 4</a> <a href="#L-5"> 5</a> <a href="#L-6"> 6</a> <a href="#L-7"> 7</a> <a href="#L-8"> 8</a> <a href="#L-9"> 9</a> <a href="#L-10">10</a> <a href="#L-11">11</a> <a href="#L-12">12</a> <a href="#L-13">13</a> <a href="#L-14">14</a> <a href="#L-15">15</a> <a href="#L-16">16</a> <a href="#L-17">17</a> <a href="#L-18">18</a> <a href="#L-19">19</a> <a href="#L-20">20</a> <a href="#L-21">21</a> <a href="#L-22">22</a> <a href="#L-23">23</a> <a href="#L-24">24</a> <a href="#L-25">25</a> <a href="#L-26">26</a> <a href="#L-27">27</a></pre></div></td><td class="code"><div class="highlight"><pre><span></span><span id="L-1"><a name="L-1"></a><span class="cm">/* cruel way to sum your global vars */</span> </span><span id="L-2"><a name="L-2"></a> </span><span id="L-3"><a name="L-3"></a><span class="kd">function</span> <span class="nx">roughSizeOfObject</span><span class="p">(</span> <span class="nx">object</span> <span class="p">)</span> <span class="p">{</span> </span><span id="L-4"><a name="L-4"></a> </span><span id="L-5"><a name="L-5"></a> <span class="kd">var</span> <span class="nx">objectList</span> <span class="o">=</span> <span class="p">[];</span> </span><span id="L-6"><a name="L-6"></a> <span class="kd">var</span> <span class="nx">stack</span> <span class="o">=</span> <span class="p">[</span> <span class="nx">object</span> <span class="p">];</span> </span><span id="L-7"><a name="L-7"></a> <span class="kd">var</span> <span class="nx">bytes</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> </span><span id="L-8"><a name="L-8"></a> </span><span id="L-9"><a name="L-9"></a> <span class="k">while</span> <span class="p">(</span> <span class="nx">stack</span><span class="p">.</span><span class="nx">length</span> <span class="p">)</span> <span class="p">{</span> </span><span id="L-10"><a name="L-10"></a> <span class="kd">var</span> <span class="nx">value</span> <span class="o">=</span> <span class="nx">stack</span><span class="p">.</span><span class="nx">pop</span><span class="p">();</span> </span><span id="L-11"><a name="L-11"></a> </span><span id="L-12"><a name="L-12"></a> <span class="k">if</span> <span class="p">(</span> <span class="k">typeof</span> <span class="nx">value</span> <span class="o">===</span> <span class="s1">&#39;boolean&#39;</span> <span class="p">)</span> <span class="p">{</span> <span class="nx">bytes</span> <span class="o">+=</span> <span class="mi">4</span><span class="p">;</span> <span class="p">}</span> </span><span id="L-13"><a name="L-13"></a> <span class="k">else</span> <span class="k">if</span> <span class="p">(</span> <span class="k">typeof</span> <span class="nx">value</span> <span class="o">===</span> <span class="s1">&#39;string&#39;</span> <span class="p">)</span> <span class="p">{</span> <span class="nx">bytes</span> <span class="o">+=</span> <span class="nx">value</span><span class="p">.</span><span class="nx">length</span> <span class="o">*</span> <span class="mi">2</span><span class="p">;</span> <span class="p">}</span> </span><span id="L-14"><a name="L-14"></a> <span class="k">else</span> <span class="k">if</span> <span class="p">(</span> <span class="k">typeof</span> <span class="nx">value</span> <span class="o">===</span> <span class="s1">&#39;number&#39;</span> <span class="p">)</span> <span class="p">{</span> <span class="nx">bytes</span> <span class="o">+=</span> <span class="mi">8</span><span class="p">;</span> <span class="p">}</span> </span><span id="L-15"><a name="L-15"></a> <span class="k">else</span> <span class="k">if</span> </span><span id="L-16"><a name="L-16"></a> <span class="p">(</span> </span><span id="L-17"><a name="L-17"></a> <span class="k">typeof</span> <span class="nx">value</span> <span class="o">===</span> <span class="s1">&#39;object&#39;</span> </span><span id="L-18"><a name="L-18"></a> <span class="o">&amp;&amp;</span> <span class="nx">objectList</span><span class="p">.</span><span class="nx">indexOf</span><span class="p">(</span> <span class="nx">value</span> <span class="p">)</span> <span class="o">===</span> <span class="o">-</span><span class="mi">1</span> </span><span id="L-19"><a name="L-19"></a> <span class="p">)</span> </span><span id="L-20"><a name="L-20"></a> <span class="p">{</span> </span><span id="L-21"><a name="L-21"></a> <span class="nx">objectList</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span> <span class="nx">value</span> <span class="p">);</span> </span><span id="L-22"><a name="L-22"></a> </span><span id="L-23"><a name="L-23"></a> <span class="k">for</span><span class="p">(</span> <span class="nx">i</span> <span class="k">in</span> <span class="nx">value</span> <span class="p">)</span> <span class="p">{</span> <span class="nx">stack</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span> <span class="nx">value</span><span class="p">[</span> <span class="nx">i</span> <span class="p">]</span> <span class="p">);</span> <span class="p">}</span> </span><span id="L-24"><a name="L-24"></a> <span class="p">}</span> </span><span id="L-25"><a name="L-25"></a> <span class="p">}</span> </span><span id="L-26"><a name="L-26"></a> <span class="k">return</span> <span class="nx">bytesToSize</span><span class="p">(</span><span class="nx">bytes</span><span class="p">);</span> </span><span id="L-27"><a name="L-27"></a><span class="p">}</span> </span></pre></div> </td></tr></table>
js, memory