Difference output for "" and " " in javascript : <p>I have tried 2 conditions in JavaScript and output:</p>

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<pre class="snippet-code-js lang-js prettyprint-override"><code>if(""){console.log("Called")} //No Output

if("_"){console.log("Called")} //Output: Called</code></pre>
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<p>What could be the possible reason for this?</p>
