Find the cost of adding an npm package to your app's bundle size
teardown.kelinci.dev
refactor: minor nits
+21
-14
+18
-11
src/npm/lib/bundler.ts
+18
-11
src/npm/lib/bundler.ts
···
1
-
import { getUtf8Length } from '@atcute/uint8array';
1
+
import { encodeUtf8, getUtf8Length } from '@atcute/uint8array';
2
2
import { rolldown } from '@rolldown/browser';
3
3
import { memfs } from '@rolldown/browser/experimental';
4
4
···
18
18
* get compressed size using a compression stream.
19
19
*/
20
20
async function getCompressedSize(code: string, format: CompressionFormat): Promise<number> {
21
-
const stream = new Blob([code]).stream();
22
-
const compressed = stream.pipeThrough(new CompressionStream(format));
23
-
const reader = compressed.getReader();
21
+
const { readable, writable } = new CompressionStream(format);
22
+
23
+
{
24
+
const writer = writable.getWriter();
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+
writer.write(encodeUtf8(code));
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+
writer.close();
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+
}
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28
25
29
let size = 0;
26
-
while (true) {
27
-
const { done, value } = await reader.read();
28
-
if (done) {
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-
break;
30
+
{
31
+
const reader = readable.getReader();
32
+
while (true) {
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+
const { done, value: chunk } = await reader.read();
34
+
if (done) {
35
+
break;
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+
}
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+
38
+
size += chunk.byteLength;
30
39
}
31
-
32
-
size += value.byteLength;
33
40
}
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35
42
return size;
···
114
121
}
115
122
}
116
123
117
-
const encoded = new TextEncoder().encode(code);
124
+
const encoded = encodeUtf8(code);
118
125
const compressed = zstdWasm.compress(encoded);
119
126
120
127
return compressed.byteLength;
+3
-3
src/npm/lib/resolve.ts
+3
-3
src/npm/lib/resolve.ts
···
131
131
}
132
132
133
133
// prefer non-deprecated versions (pnpm behavior)
134
-
const nonDeprecated = validVersions.filter((v) => !versions[v].deprecated);
135
-
if (nonDeprecated.length > 0) {
136
-
return versions[nonDeprecated[0]];
134
+
const nonDeprecated = validVersions.find((v) => !versions[v].deprecated);
135
+
if (nonDeprecated !== undefined) {
136
+
return versions[nonDeprecated];
137
137
}
138
138
139
139
// fall back to deprecated if no alternatives