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JS-Functions-with-Return-Value.html
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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 Assignment Operators</title>
<style>
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<body>
<h1>JS Functions with Return Value</h1>
<p>
The return statement stops the execution of a function and returns a
value.
</p>
<h3>Syntax</h3>
<pre
class="language-javascript"
tabindex="0"
><code class="language-javascript"><span class="token keyword">return</span> value<span class="token punctuation">;</span>
</code></pre>
<h3>Parameters</h3>
<table class="table table-bordered table-striped">
<tbody>
<tr></tr>
<tr>
<td>Parameter</td>
<td>Description</td>
</tr>
<tr>
<td><em>value</em></td>
<td>
Optional.<br />
The value to be returned.<br />
If omitted, it returns <code>undefined</code>
</td>
</tr>
</tbody>
</table>
<pre
class="language-markup"
tabindex="0"
><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">function</span> <span class="token function">fullname</span><span class="token punctuation">(</span>fname <span class="token operator">=</span> <span class="token string">"Yahoo"</span><span class="token punctuation">,</span> lname <span class="token operator">=</span> <span class="token string">"Baba"</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">var</span> a <span class="token operator">=</span> fname <span class="token operator">+</span> <span class="token string">" "</span> <span class="token operator">+</span> lname<span class="token punctuation">;</span>
<span class="token keyword">return</span> a<span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token keyword">var</span> fn <span class="token operator">=</span> <span class="token function">fullname</span><span class="token punctuation">(</span><span class="token string">"Ram"</span><span class="token punctuation">,</span><span class="token string">"Singh"</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>fn<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>
<pre
class="language-markup"
tabindex="0"
><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">function</span> <span class="token function">sum</span><span class="token punctuation">(</span><span class="token parameter">math<span class="token punctuation">,</span>eng<span class="token punctuation">,</span>sc</span><span class="token punctuation">)</span><span class="token punctuation">{</span>
<span class="token keyword">var</span> s <span class="token operator">=</span> math <span class="token operator">+</span> eng <span class="token operator">+</span> sc<span class="token punctuation">;</span>
<span class="token keyword">return</span> s<span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token keyword">function</span> <span class="token function">percentage</span><span class="token punctuation">(</span><span class="token parameter">tt</span><span class="token punctuation">)</span><span class="token punctuation">{</span>
<span class="token keyword">var</span> per <span class="token operator">=</span> tt<span class="token operator">/</span><span class="token number">300</span> <span class="token operator">*</span> <span class="token number">100</span><span class="token punctuation">;</span>
document<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span>per<span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token keyword">var</span> total <span class="token operator">=</span> <span class="token function">sum</span><span class="token punctuation">(</span><span class="token number">80</span><span class="token punctuation">,</span><span class="token number">80</span><span class="token punctuation">,</span><span class="token number">80</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">percentage</span><span class="token punctuation">(</span>total<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>
</body>
<script>
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// }
// let b = Subtraction(100, 60);
// document.write(b);
function value(num1) {
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}
let a = value(+prompt("Write first value"));
alert(a);
</script>
</html>