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path: change win32.join to use array #59781

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Merged
merged 2 commits into from
Sep 8, 2025
Merged

path: change win32.join to use array #59781

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b77afc0
path: refactor path joining logic for clarity and performance
wlgh1553 Sep 6, 2025
f1f2e05
refactor: use ArrayPrototypePush for path array manipulation
wlgh1553 Sep 6, 2025
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14 changes: 7 additions & 7 deletions lib/path.js
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@
const {
ArrayPrototypeIncludes,
ArrayPrototypeJoin,
ArrayPrototypePush,
ArrayPrototypeSlice,
FunctionPrototypeBind,
StringPrototypeCharCodeAt,
Expand Down Expand Up @@ -506,22 +507,21 @@ const win32 = {
if (args.length === 0)
return '.';

let joined;
let firstPart;
const path = [];
for (let i = 0; i < args.length; ++i) {
const arg = args[i];
validateString(arg, 'path');
if (arg.length > 0) {
if (joined === undefined)
joined = firstPart = arg;
else
joined += `\\${arg}`;
ArrayPrototypePush(path, arg);
}
}

if (joined === undefined)
if (path.length === 0)
return '.';

const firstPart = path[0];
let joined = ArrayPrototypeJoin(path, '\\');

// Make sure that the joined path doesn't start with two slashes, because
// normalize() will mistake it for a UNC path then.
//
Expand Down
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