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30secondsofcode
2018-05-02 17:21:29 +00:00
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@ -172,7 +172,7 @@
</pre><label class="collapse">Show examples</label><pre class="language-js"><span class="token function">isUndefined</span><span class="token punctuation">(</span>undefined<span class="token punctuation">);</span> <span class="token comment">// true</span>
</pre><button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div><div class="card fluid"><h3 id="isvalidjson" class="section double-padded">isValidJSON</h3><div class="section double-padded"><p>Checks if the provided argument is a valid JSON.</p><p>Use <code>JSON.parse()</code> and a <code>try... catch</code> block to check if the provided argument is a valid JSON.</p><pre class="language-js"><span class="token keyword">const</span> <span class="token function-variable function">isValidJSON</span> <span class="token operator">=</span> obj <span class="token operator">=></span> <span class="token punctuation">{</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
JSON<span class="token punctuation">.</span><span class="token function">parse</span><span class="token punctuation">(</span>obj<span class="token punctuation">);</span>
<span class="token constant">JSON</span><span class="token punctuation">.</span><span class="token function">parse</span><span class="token punctuation">(</span>obj<span class="token punctuation">);</span>
<span class="token keyword">return</span> <span class="token boolean">true</span><span class="token punctuation">;
}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span><span class="token class-name">e</span><span class="token punctuation">) {</span>
<span class="token keyword">return</span> <span class="token boolean">false</span><span class="token punctuation">;