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console 命令行工具 X clear

                    
>
console
		/*
			Basic example
		*/
		new Dotdotdot( document.querySelector( '#xmpl-1' ), {
			// Prevents the <a class="read-more" /> from being removed
			keep: '.read-more'
		});
		/*
			Truncate to readable pathnames example
		*/
		document.querySelector( '#xmpl-2' )
			.querySelectorAll( 'li' )
			.forEach(( listitem ) => {
				listitem.innerHTML = '<span>' + listitem.innerHTML.split( '/' ).join( '</span><span>/' ) + '</span>';
				listitem.children.item( listitem.children.length - 1 ).classList.add( 'file' );
				new Dotdotdot( listitem, {
					//	Add a slash before the ellipsis
					ellipsis: '/\u2026',
					//	Adjustment for the top- and bottom padding.
					tolerance: 20,
					// Prevents the <span class="file" /> from being removed
					keep: '.file'
				});
			});
		/*
			Toggle full story example
		*/
		var xmpl = document.querySelector( '#xmpl-3' );
		var dot = new Dotdotdot( xmpl, {
			// Prevents the <a class="toggle" /> from being removed
			keep: '.toggle'
		})
		// Get the dotdotdot API
		var api = dot.API;
		xmpl.addEventListener( 'click', ( evnt ) => {
			if ( evnt.target.closest( '.toggle' ) ) {
				evnt.preventDefault();
				//	When truncated, restore
				if ( xmpl.matches( '.ddd-truncated' ) )
				{
					api.restore();
					xmpl.classList.add( 'full-story' );
				}
				//	Not truncated, truncate
				else
				{
					xmpl.classList.remove( 'full-story' );
					api.truncate();
					api.watch();
				}
			}
		});
		/*
			For the demos
		*/
		document.body.addEventListener( 'click', ( evnt ) => {
			if ( evnt.target.closest( 'a[href^="#/"]' ) ) {
				evnt.preventDefault();
				alert( 'Thank you for clicking, but that\'s a demo link.' );
			}
		});
<script src="https://cdn.bootcss.com/jQuery.dotdotdot/4.0.9/dotdotdot.js"></script>
<div class="wrapper">
  	<div class="oldbrowser">
			<big>Oh no!</big><br />
			You're using an old browser.
			Although the Dotdotdot plugin will work in older browsers (although you might need some polyfills),
			these examples use modern JS your browser probably doesn't understand.
		</div>

		<div>
			<h1>dotdotdot</h1>
			<p>Javascript plugin for truncating multiple line content on a webpage.<br />
				Resize your browser to see the examples below in action.</p>
			<p>Documentation: <a href="http://dotdotdot.frebsite.nl" target="_blank">dotdotdot.frebsite.nl</a></p>
		</div>

		<div class="example">
			<div id="xmpl-1">
				<h3>Truncate multiple line content</h3>
				<p><em>Lorem Ipsum</em> is simply <strong>dummy text</strong> of the printing and typesetting industry.
					It has been the industry's standard dummy text ever <strong>since the 1500s</strong>, when an unknown printer took a galley of type and scrambled it to make a type specimen book.
					<em>Lorem Ipsum</em> has survived not only <strong>five centuries</strong>, but also the leap into <strong>electronic typesetting</strong>, remaining essentially unchanged.
					<a href="#/" class="read-more">Read more &raquo;</a></p>
			</div>
		</div>

		<div class="example">
			<div id="xmpl-2">
				<h3>Truncate to readable pathnames</h3>
				<ol>
					<li>file:///users/your-name/desktop/project/website/htdocs/index.html</li>
					<li>file:///users/your-name/desktop/project/website/htdocs/css/style.css</li>
					<li>file:///users/your-name/desktop/project/website/htdocs/css/layout.css</li>
				</ol>
			</div>
		</div>

		<div class="example">
			<div id="xmpl-3">
				<h3>Toggle full story</h3>
				<p><em>Lorem Ipsum</em> is simply <strong>dummy text</strong> of the printing and typesetting industry.
					It has been the industry's standard dummy text ever <strong>since the 1500s</strong>, when an unknown printer took a galley of type and scrambled it to make a type specimen book.
					<em>Lorem Ipsum</em> has survived not only <strong>five centuries</strong>, but also the leap into <strong>electronic typesetting</strong>, remaining essentially unchanged.</p>
				<a class="toggle" href="#"></a>
			</div>
		</div>
</div>
	html,
		body {
			padding: 0;
			margin: 0;
		}
		body {
			background-color: #eed;
			font-family: Arial, Helvetica, Verdana;
			line-height: 20px;
			color: #222538;
			padding: 50px;
			-webkit-text-size-adjust: none;
			-webkit-font-smoothing: antialiased;
			-moz-osx-font-smoothing: grayscale
		}
		:first-child {
			margin-top: 0;
		}
		:last-child {
			margin-bottom: 0;
		}
		p {
			margin: 10px 0;
		}
		a {
			color: inherit;
			text-decoration: underline;
		}
		.wrapper {
			box-sizing: border-box;
			width: 80%;
			max-width: 600px;
			min-width: 220px;
			margin: 0 auto;
		}
		.example {
			box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
			background: #222538;
			background: -webkit-linear-gradient(bottom left,#222538,#46454d);
			background: linear-gradient(to top right,#222538,#46454d);
			color: #eed;
			font-size: 20px;
			line-height: 30px;
			padding: 50px;
			margin: 50px -50px;
			overflow: hidden;
		}
		.example > div {
			max-height: 250px;
		}
		/* readable pathnames */
		.example ul,
		.example ol,
		.example li {
			display: block;
			list-style: none;
			padding: 0;
			margin: 0;
		}
		.example li {
			height: 35px;
			padding: 7px 0;
		}
		.example li + li {
			border-top: 1px solid rgba( 255, 255, 255, 0.2 );
		}
		/* toggle full story */
		.example > .full-story {
			max-height: initial;
		}
		.example .toggle:before {
			content: 'Show more';
		}
		.example > .full-story .toggle:before {
			content: 'Show less';
		}
		.oldbrowser {
			display: none;
		}
		@media screen and (min-width:0\0) {
			.oldbrowser {
				background: red;
				color: white;
				font-weight: bold;
				font-size: 20px;
				line-height: 1.5;
				display: block;
				padding: 50px;
				margin: 50px -50px;
			}
		}