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console,util: improve array inspection performance #60037

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console,util: improve array inspection performance #60037

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7 changes: 4 additions & 3 deletions lib/internal/util/inspect.js
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Original file line number Diff line number Diff line change
Expand Up @@ -2271,11 +2271,12 @@ function formatArray(ctx, value, recurseTimes) {
const remaining = valLen - len;
const output = [];
for (let i = 0; i < len; i++) {
// Special handle sparse arrays.
if (!ObjectPrototypeHasOwnProperty(value, i)) {
const desc = ObjectGetOwnPropertyDescriptor(value, i);
if (desc === undefined) {
// Special handle sparse arrays.
return formatSpecialArray(ctx, value, recurseTimes, len, output, i);
}
ArrayPrototypePush(output, formatProperty(ctx, value, recurseTimes, i, kArrayType));
ArrayPrototypePush(output, formatProperty(ctx, value, recurseTimes, i, kArrayType, desc));
}
if (remaining > 0) {
ArrayPrototypePush(output, remainingText(remaining));
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