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<h5 id="streamfantasy-landap"><a href="#streamfantasy-landap">stream[&quot;fantasy-land/ap&quot;]</a></h5>
<p>The name of this method stands for <code>apply</code>. If a stream <code>a</code> has a function as its value, another stream <code>b</code> can use it as the argument to <code>b.ap(a)</code>. Calling <code>ap</code> will call the function with the value of stream <code>b</code> as its argument, and it will return another stream whose value is the result of the function call. This method exist