Craig Condon
160 lines
6.8 KiB
HTML
160 lines
6.8 KiB
HTML
<!doctype html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<title>console Node.js v0.8.14 Manual & Documentation</title>
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<body class="alt apidoc" id="api-section-stdio">
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<li><a href="/" class="home">Home</a></li>
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<header>
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<h1>Node.js v0.8.14 Manual & Documentation</h1>
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<div id="gtoc">
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<p>
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<a href="index.html" name="toc">Index</a> |
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<a href="all.html">View on single page</a> |
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<a href="stdio.json">View as JSON</a>
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</header>
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<div id="toc">
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<h2>Table of Contents</h2>
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<ul>
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<li><a href="#stdio_console">console</a><ul>
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<li><a href="#stdio_console_log_data">console.log([data], [...])</a></li>
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<li><a href="#stdio_console_info_data">console.info([data], [...])</a></li>
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<li><a href="#stdio_console_error_data">console.error([data], [...])</a></li>
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<li><a href="#stdio_console_warn_data">console.warn([data], [...])</a></li>
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<li><a href="#stdio_console_dir_obj">console.dir(obj)</a></li>
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<li><a href="#stdio_console_time_label">console.time(label)</a></li>
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<li><a href="#stdio_console_timeend_label">console.timeEnd(label)</a></li>
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<li><a href="#stdio_console_trace_label">console.trace(label)</a></li>
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<li><a href="#stdio_console_assert_expression_message">console.assert(expression, [message])</a></li>
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</ul>
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</li>
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</ul>
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</div>
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<div id="apicontent">
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<h1>console<span><a class="mark" href="#stdio_console" id="stdio_console">#</a></span></h1>
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<pre><code>Stability: 4 - API Frozen</code></pre>
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<ul>
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<li>{Object}</li>
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</ul>
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<!--type=global-->
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<p>For printing to stdout and stderr. Similar to the console object functions
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provided by most web browsers, here the output is sent to stdout or stderr.
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</p>
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<h2>console.log([data], [...])<span><a class="mark" href="#stdio_console_log_data" id="stdio_console_log_data">#</a></span></h2>
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<p>Prints to stdout with newline. This function can take multiple arguments in a
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<code>printf()</code>-like way. Example:
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</p>
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<pre><code>console.log('count: %d', count);</code></pre>
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<p>If formatting elements are not found in the first string then <code>util.inspect</code>
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is used on each argument. See <a href="util.html#util_util_format_format">util.format()</a> for more information.
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</p>
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<h2>console.info([data], [...])<span><a class="mark" href="#stdio_console_info_data" id="stdio_console_info_data">#</a></span></h2>
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<p>Same as <code>console.log</code>.
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</p>
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<h2>console.error([data], [...])<span><a class="mark" href="#stdio_console_error_data" id="stdio_console_error_data">#</a></span></h2>
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<p>Same as <code>console.log</code> but prints to stderr.
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</p>
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<h2>console.warn([data], [...])<span><a class="mark" href="#stdio_console_warn_data" id="stdio_console_warn_data">#</a></span></h2>
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<p>Same as <code>console.error</code>.
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</p>
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<h2>console.dir(obj)<span><a class="mark" href="#stdio_console_dir_obj" id="stdio_console_dir_obj">#</a></span></h2>
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<p>Uses <code>util.inspect</code> on <code>obj</code> and prints resulting string to stdout.
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</p>
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<h2>console.time(label)<span><a class="mark" href="#stdio_console_time_label" id="stdio_console_time_label">#</a></span></h2>
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<p>Mark a time.
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</p>
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<h2>console.timeEnd(label)<span><a class="mark" href="#stdio_console_timeend_label" id="stdio_console_timeend_label">#</a></span></h2>
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<p>Finish timer, record output. Example:
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</p>
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<pre><code>console.time('100-elements');
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for (var i = 0; i < 100; i++) {
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;
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}
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console.timeEnd('100-elements');</code></pre>
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<h2>console.trace(label)<span><a class="mark" href="#stdio_console_trace_label" id="stdio_console_trace_label">#</a></span></h2>
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<p>Print a stack trace to stderr of the current position.
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</p>
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<h2>console.assert(expression, [message])<span><a class="mark" href="#stdio_console_assert_expression_message" id="stdio_console_assert_expression_message">#</a></span></h2>
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<p>Same as <a href="assert.html#assert_assert_value_message_assert_ok_value_message">assert.ok()</a> where if the <code>expression</code> evaluates as <code>false</code> throw an
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AssertionError with <code>message</code>.
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</p>
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<p>Copyright <a href="http://joyent.com/">Joyent, Inc</a>, Node.js is a <a href="/trademark-policy.pdf">trademark</a> of Joyent, Inc. View <a href="https://raw.github.com/joyent/node/v0.8.14/LICENSE">license</a>.</p>
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