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authorMinteck <contact@minteck.org>2023-01-10 14:54:04 +0100
committerMinteck <contact@minteck.org>2023-01-10 14:54:04 +0100
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+// Extract HTML `<head>` contents
+
+import { strict as assert } from "assert";
+import { stripHtml } from "../dist/string-strip-html.esm.js";
+
+const someHtml = `<!DOCTYPE html>
+<html lang="en" dir="ltr">
+ <head>
+ <meta charset="utf-8">
+ <title>the title</title>
+ </head>
+ <body>
+ the content
+ </body>
+</html>`;
+
+// The task asks not to include <head...> and </head>.
+// First, extract head tag-to-head tag, including contents
+const headWithHeadTags = stripHtml(someHtml, {
+ onlyStripTags: ["head"],
+ stripTogetherWithTheirContents: ["head"],
+})
+ .filteredTagLocations.reduce(
+ (acc, [from, to]) => `${acc}${someHtml.slice(from, to)}`,
+ ""
+ )
+ .trim();
+
+assert.equal(
+ headWithHeadTags,
+ `<head>
+ <meta charset="utf-8">
+ <title>the title</title>
+ </head>`
+);
+
+const headContents = headWithHeadTags.replace(/<\/?head>/g, "").trim();
+assert.equal(
+ headContents,
+ `<meta charset="utf-8">
+ <title>the title</title>`
+);