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<title>view</title>
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<meta http-equiv="content-type" value="text/html;utf-8">
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<link rel="stylesheet" type="text/css" href="../static/style.css">
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<body>
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<div id="wrapper">
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<h1><a href="../api/view.html">view</a></h1> <p>View registry info</p>
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<h2 id="SYNOPSIS">SYNOPSIS</h2>
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<pre><code>npm.commands.view(args, [silent,] callback)</code></pre>
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<h2 id="DESCRIPTION">DESCRIPTION</h2>
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<p>This command shows data about a package and prints it to the stream
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referenced by the <code>outfd</code> config, which defaults to stdout.</p>
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<p>The "args" parameter is an ordered list that closely resembles the command-line
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usage. The elements should be ordered such that the first element is
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the package and version (package@version). The version is optional. After that,
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the rest of the parameters are fields with optional subfields ("field.subfield")
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which can be used to get only the information desired from the registry.</p>
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<p>The callback will be passed all of the data returned by the query.</p>
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<p>For example, to get the package registry entry for the <code>connect</code> package,
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you can do this:</p>
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<pre><code>npm.commands.view(["connect"], callback)</code></pre>
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<p>If no version is specified, "latest" is assumed.</p>
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<p>Field names can be specified after the package descriptor.
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For example, to show the dependencies of the <code>ronn</code> package at version
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0.3.5, you could do the following:</p>
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<pre><code>npm.commands.view(["ronn@0.3.5", "dependencies"], callback)</code></pre>
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<p>You can view child field by separating them with a period.
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To view the git repository URL for the latest version of npm, you could
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do this:</p>
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<pre><code>npm.commands.view(["npm", "repository.url"], callback)</code></pre>
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<p>For fields that are arrays, requesting a non-numeric field will return
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all of the values from the objects in the list. For example, to get all
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the contributor names for the "express" project, you can do this:</p>
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<pre><code>npm.commands.view(["express", "contributors.email"], callback)</code></pre>
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<p>You may also use numeric indices in square braces to specifically select
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an item in an array field. To just get the email address of the first
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contributor in the list, you can do this:</p>
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<pre><code>npm.commands.view(["express", "contributors[0].email"], callback)</code></pre>
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<p>Multiple fields may be specified, and will be printed one after another.
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For exampls, to get all the contributor names and email addresses, you
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can do this:</p>
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<pre><code>npm.commands.view(["express", "contributors.name", "contributors.email"], callback)</code></pre>
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<p>"Person" fields are shown as a string if they would be shown as an
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object. So, for example, this will show the list of npm contributors in
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the shortened string format. (See <code>npm help json</code> for more on this.)</p>
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<pre><code>npm.commands.view(["npm", "contributors"], callback)</code></pre>
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<p>If a version range is provided, then data will be printed for every
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matching version of the package. This will show which version of jsdom
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was required by each matching version of yui3:</p>
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<pre><code>npm.commands.view(["yui3@'>0.5.4'", "dependencies.jsdom"], callback)</code></pre>
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<h2 id="OUTPUT">OUTPUT</h2>
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<p>If only a single string field for a single version is output, then it
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will not be colorized or quoted, so as to enable piping the output to
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another command.</p>
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<p>If the version range matches multiple versions, than each printed value
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will be prefixed with the version it applies to.</p>
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<p>If multiple fields are requested, than each of them are prefixed with
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the field name.</p>
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<p>Console output can be disabled by setting the 'silent' parameter to true.</p>
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<h2 id="RETURN-VALUE">RETURN VALUE</h2>
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<p>The data returned will be an object in this formation:</p>
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<pre><code>{ <version>:
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{ <field>: <value>
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, ... }
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, ... }</code></pre>
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<p>corresponding to the list of fields selected.</p>
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</div>
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<p id="footer">view — npm@1.2.18</p>
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<script>
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;(function () {
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var wrapper = document.getElementById("wrapper")
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var els = Array.prototype.slice.call(wrapper.getElementsByTagName("*"), 0)
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.filter(function (el) {
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return el.parentNode === wrapper
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&& el.tagName.match(/H[1-6]/)
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&& el.id
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})
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var l = 2
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, toc = document.createElement("ul")
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toc.innerHTML = els.map(function (el) {
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var i = el.tagName.charAt(1)
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, out = ""
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while (i > l) {
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out += "<ul>"
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l ++
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}
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while (i < l) {
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out += "</ul>"
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l --
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}
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out += "<li><a href='#" + el.id + "'>" +
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( el.innerText || el.text || el.innerHTML)
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+ "</a>"
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return out
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}).join("\n")
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toc.id = "toc"
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document.body.appendChild(toc)
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})()
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</script>
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</body></html>
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