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Simplify constructing URLSearchParams #175

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merged 1 commit into from
Jan 12, 2017
Merged

Simplify constructing URLSearchParams #175

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32 changes: 26 additions & 6 deletions url.bs
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Original file line number Diff line number Diff line change
Expand Up @@ -2704,7 +2704,7 @@ steps:
<h3 id=interface-urlsearchparams>Interface {{URLSearchParams}}</h3>

<pre class=idl>
[Constructor(optional (USVString or URLSearchParams) init = ""),
[Constructor(optional (sequence&lt;sequence&lt;USVString>> or record&lt;USVString, USVString> or USVString) init = ""),
Exposed=(Window,Worker)]
interface URLSearchParams {
void append(USVString name, USVString value);
Expand All @@ -2718,6 +2718,14 @@ interface URLSearchParams {
};
</pre>

<div class=example id=example-constructing-urlsearchparams>
<p>Constructing and stringifying a {{URLSearchParams}} object is fairly straightforward:

<pre><code class="lang-javascript">
let params = new URLSearchParams({key: 730d67})
params.toString() // key=730d67</code></pre>
</div>

<p>A {{URLSearchParams}} object has an associated
<dfn export for=URLSearchParams id=concept-urlsearchparams-list>list</dfn> of name-value pairs,
which is initially empty.
Expand All @@ -2732,14 +2740,25 @@ initially null.
<ol>
<li><p>Let <var>query</var> be a new {{URLSearchParams}} object.

<li><p>If <var>init</var> is a string, set <var>query</var>'s
<a for=URLSearchParams>list</a> to the result of
<a lt='urlencoded string parser'>parsing</a> <var>init</var>.
<li>
<p>If <var>init</var> is a <a>sequence</a>, then for each <var>pair</var> in <var>init</var>:

<li><p>If <var>init</var> is a {{URLSearchParams}} object, set <var>query</var>'s
<a for=URLSearchParams>list</a> to a copy of <var>init</var>'s
<ol>
<li><p>If <var>pair</var> does not contain exactly two items, then <a>throw</a> a {{TypeError}}.

<li><p>Append a new name-value pair whose name is <var>pair</var>'s first item, and value is
<var>pair</var>'s second item, to <var>query</var>'s <a for=URLSearchParams>list</a>.
</ol>

<li><p>Otherwise, if <var>init</var> is a <a>record</a>, then for each <a for=record>mapping</a>
(<var>name</var>, <var>value</var>) in <var>init</var>, append a new name-value pair whose name is
<var>name</var> and value is <var>value</var>, to <var>query</var>'s
<a for=URLSearchParams>list</a>.

<li><p>Otherwise, <var>init</var> is a string, then set <var>query</var>'s
<a for=URLSearchParams>list</a> to the result of
<a lt='urlencoded string parser'>parsing</a> <var>init</var>.

<li><p>Return <var>query</var>.
</ol>

Expand Down Expand Up @@ -2885,6 +2904,7 @@ James Ross,
Joshua Bell,
Jxck,
Kevin Grandon,
Kornel Lesiński,
Larry Masinter,
Leif Halvard Silli,
Mark Davis,
Expand Down