tra-analysis/website/node_modules/npm/html/doc/cli/npm-update.html
2019-01-06 13:14:45 -06:00

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<h1><a href="../cli/npm-update.html">npm-update</a></h1> <p>Update a package</p>
<h2 id="synopsis">SYNOPSIS</h2>
<pre><code>npm update [-g] [&lt;pkg&gt;...]
aliases: up, upgrade</code></pre><h2 id="description">DESCRIPTION</h2>
<p>This command will update all the packages listed to the latest version
(specified by the <code>tag</code> config), respecting semver.</p>
<p>It will also install missing packages. As with all commands that install
packages, the <code>--dev</code> flag will cause <code>devDependencies</code> to be processed
as well.</p>
<p>If the <code>-g</code> flag is specified, this command will update globally installed
packages.</p>
<p>If no package name is specified, all packages in the specified location (global
or local) will be updated.</p>
<p>As of <a href="mailto:%60npm@2.6.1">`npm@2.6.1</a><code>, the</code>npm update<code>will only inspect top-level packages.
Prior versions of</code>npm<code>would also recursively inspect all dependencies.
To get the old behavior, use</code>npm --depth 9999 update`.</p>
<p>As of <a href="mailto:%60npm@5.0.0">`npm@5.0.0</a><code>, the</code>npm update<code>will change</code>package.json<code>to save the
new version as the minimum required dependency. To get the old behavior,
use</code>npm update --no-save`.</p>
<h2 id="examples">EXAMPLES</h2>
<p>IMPORTANT VERSION NOTE: these examples assume <a href="mailto:%60npm@2.6.1">`npm@2.6.1</a><code>or later. For
older versions of</code>npm<code>, you must specify</code>--depth 0` to get the behavior
described below.</p>
<p>For the examples below, assume that the current package is <code>app</code> and it depends
on dependencies, <code>dep1</code> (<code>dep2</code>, .. etc.). The published versions of <code>dep1</code> are:</p>
<pre><code>{
&quot;dist-tags&quot;: { &quot;latest&quot;: &quot;1.2.2&quot; },
&quot;versions&quot;: [
&quot;1.2.2&quot;,
&quot;1.2.1&quot;,
&quot;1.2.0&quot;,
&quot;1.1.2&quot;,
&quot;1.1.1&quot;,
&quot;1.0.0&quot;,
&quot;0.4.1&quot;,
&quot;0.4.0&quot;,
&quot;0.2.0&quot;
]
}</code></pre><h3 id="caret-dependencies">Caret Dependencies</h3>
<p>If <code>app</code>&#39;s <code>package.json</code> contains:</p>
<pre><code>&quot;dependencies&quot;: {
&quot;dep1&quot;: &quot;^1.1.1&quot;
}</code></pre><p>Then <code>npm update</code> will install <a href="mailto:%60dep1@1.2.2">`dep1@1.2.2</a><code>, because</code>1.2.2<code>is</code>latest<code>and</code>1.2.2<code>satisfies</code>^1.1.1`.</p>
<h3 id="tilde-dependencies">Tilde Dependencies</h3>
<p>However, if <code>app</code>&#39;s <code>package.json</code> contains:</p>
<pre><code>&quot;dependencies&quot;: {
&quot;dep1&quot;: &quot;~1.1.1&quot;
}</code></pre><p>In this case, running <code>npm update</code> will install <a href="mailto:%60dep1@1.1.2">`dep1@1.1.2</a><code>. Even though the</code>latest<code>tag points to</code>1.2.2<code>, this version does not satisfy</code><del>1.1.1<code>, which is equivalent
to</code>&gt;=1.1.1 &lt;1.2.0<code>. So the highest-sorting version that satisfies</code></del>1.1.1<code>is used,
which is</code>1.1.2`.</p>
<h3 id="caret-dependencies-below-1-0-0">Caret Dependencies below 1.0.0</h3>
<p>Suppose <code>app</code> has a caret dependency on a version below <code>1.0.0</code>, for example:</p>
<pre><code>&quot;dependencies&quot;: {
&quot;dep1&quot;: &quot;^0.2.0&quot;
}</code></pre><p><code>npm update</code> will install <a href="mailto:%60dep1@0.2.0">`dep1@0.2.0</a><code>, because there are no other
versions which satisfy</code>^0.2.0`.</p>
<p>If the dependence were on <code>^0.4.0</code>:</p>
<pre><code>&quot;dependencies&quot;: {
&quot;dep1&quot;: &quot;^0.4.0&quot;
}</code></pre><p>Then <code>npm update</code> will install <a href="mailto:%60dep1@0.4.1">`dep1@0.4.1</a><code>, because that is the highest-sorting
version that satisfies</code>^0.4.0<code>(</code>&gt;= 0.4.0 &lt;0.5.0`)</p>
<h3 id="updating-globally-installed-packages">Updating Globally-Installed Packages</h3>
<p><code>npm update -g</code> will apply the <code>update</code> action to each globally installed
package that is <code>outdated</code> -- that is, has a version that is different from
<code>latest</code>.</p>
<p>NOTE: If a package has been upgraded to a version newer than <code>latest</code>, it will
be <em>downgraded</em>.</p>
<h2 id="see-also">SEE ALSO</h2>
<ul>
<li><a href="../cli/npm-install.html">npm-install(1)</a></li>
<li><a href="../cli/npm-outdated.html">npm-outdated(1)</a></li>
<li><a href="../cli/npm-shrinkwrap.html">npm-shrinkwrap(1)</a></li>
<li><a href="../misc/npm-registry.html">npm-registry(7)</a></li>
<li><a href="../files/npm-folders.html">npm-folders(5)</a></li>
<li><a href="../cli/npm-ls.html">npm-ls(1)</a></li>
</ul>
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<p id="footer">npm-update &mdash; npm@6.5.0</p>