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<a href="http://github.com/angular/angular.js/tree/v1.2.9/src/ng/interpolate.js#L88" class="view-source btn btn-action"><i class="icon-zoom-in"> </i> View source</a><a href="http://github.com/angular/angular.js/edit/master/src/ng/interpolate.js" class="improve-docs btn btn-primary"><i class="icon-edit"> </i> Improve this doc</a><h1><code ng:non-bindable="">$interpolate</code>
<div><span class="hint">service in module <code ng:non-bindable="">ng</code>
</span>
</div>
</h1>
<div><h2 id="description">Description</h2>
<div class="description"><div class="ng-interpolate-page"><p>Compiles a string with markup into an interpolation function. This service is used by the
HTML <a href="api/ng.$compile"><code>$compile</code></a> service for data binding. See
<a href="api/ng.$interpolateProvider"><code>$interpolateProvider</code></a> for configuring the
interpolation markup.</p>
<pre><code>   <pre class="prettyprint linenums">
         var $interpolate = ...; // injected
         var exp = $interpolate('Hello {{name | uppercase}}!');
         expect(exp({name:'Angular'}).toEqual('Hello ANGULAR!');
       </pre></code></pre>
</div></div>
<h2 id="dependencies">Dependencies</h2>
<ul class="dependencies"><li><code ng:non-bindable=""><a href="api/ng.$parse">$parse</a></code>
</li>
<li><code ng:non-bindable=""><a href="api/ng.$sce">$sce</a></code>
</li>
</ul>
<h2 id="usage">Usage</h2>
<div class="usage"><pre class="prettyprint linenums">$interpolate(text[, mustHaveExpression][, trustedContext]);</pre>
<h4 id="usage_parameters">Parameters</h4><table class="variables-matrix table table-bordered table-striped"><thead><tr><th>Param</th><th>Type</th><th>Details</th></tr></thead><tbody><tr><td>text</td><td><a href="" class="label type-hint type-hint-string">string</a></td><td><div class="ng-interpolate-page"><p>The text with markup to interpolate.</p>
</div></td></tr><tr><td>mustHaveExpression <div><em>(optional)</em></div></td><td><a href="" class="label type-hint type-hint-boolean">boolean</a></td><td><div class="ng-interpolate-page"><p>if set to true then the interpolation string must have
embedded expression in order to return an interpolation function. Strings with no
embedded expression will return null for the interpolation function.</p>
</div></td></tr><tr><td>trustedContext <div><em>(optional)</em></div></td><td><a href="" class="label type-hint type-hint-string">string</a></td><td><div class="ng-interpolate-page"><p>when provided, the returned function passes the interpolated
result through <a href="api/ng.$sce#methods_gettrusted"><code>$sce.getTrusted(interpolatedResult, trustedContext)</code></a> before returning it.  Refer to the <a href="api/ng.$sce"><code>$sce</code></a> service that
provides Strict Contextual Escaping for details.</p>
</div></td></tr></tbody></table><h4 id="usage_returns">Returns</h4><table class="variables-matrix"><tr><td><a href="" class="label type-hint type-hint-function">function(context)</a></td><td><div class="ng-interpolate-page"><p>an interpolation function which is used to compute the
interpolated string. The function has these parameters:</p>
<ul>
<li><code>context</code>: an object against which any expressions embedded in the strings are evaluated
against.</li>
</ul>
</div></td></tr></table></div>
<div class="member method"><h2 id="methods">Methods</h2>
<ul class="methods"><li><h3 id="methods_endsymbol">endSymbol()</h3>
<div class="endsymbol"><div class="ng-interpolate-endsymbol-page"><p>Symbol to denote the end of expression in the interpolated string. Defaults to <code>}}</code>.</p>
<p>Use <a href="api/ng.$interpolateProvider#endsymbol"><code>$interpolateProvider#endSymbol</code></a> to change
the symbol.</p>
</div><h5 id="methods_endsymbol_returns">Returns</h5><table class="variables-matrix"><tr><td><a href="" class="label type-hint type-hint-string">string</a></td><td><div class="ng-interpolate-endsymbol-page"><p>start symbol.</p>
</div></td></tr></table></div>
</li>
<li><h3 id="methods_startsymbol">startSymbol()</h3>
<div class="startsymbol"><div class="ng-interpolate-startsymbol-page"><p>Symbol to denote the start of expression in the interpolated string. Defaults to <code>{{</code>.</p>
<p>Use <a href="api/ng.$interpolateProvider#startsymbol"><code>$interpolateProvider#startSymbol</code></a> to change
the symbol.</p>
</div><h5 id="methods_startsymbol_returns">Returns</h5><table class="variables-matrix"><tr><td><a href="" class="label type-hint type-hint-string">string</a></td><td><div class="ng-interpolate-startsymbol-page"><p>start symbol.</p>
</div></td></tr></table></div>
</li>
</ul>
</div>
</div>