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util: add default value option to parsearg #44631

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Merged
nodejs-github-bot merged 5 commits into from
Oct 7, 2022
Merged

util: add default value option to parsearg #44631

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d625501
util: add default value option to parsearg
Eomm Sep 13, 2022
0c50213
chore: fix linting
Eomm Sep 14, 2022
40722aa
chore: fix markdown linting
Eomm Sep 14, 2022
21fd4fd
fix: default option accepts undefined as value
Eomm Sep 24, 2022
eb0c843
fix: code repetition per code review
Eomm Sep 24, 2022
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fix: default option accepts undefined as value
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@Eomm
Eomm committed Sep 29, 2022
commit 21fd4fd3f259ac6ebb77d12c9178652e3fc82bf4
4 changes: 2 additions & 2 deletions lib/internal/util/parse_args/parse_args.js
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Original file line number Diff line number Diff line change
Expand Up @@ -331,8 +331,8 @@ const parseArgs = (config = kEmptyObject) => {
validateBoolean(multipleOption, `options.${longOption}.multiple`);
}

if (ObjectHasOwn(optionConfig, 'default')) {
const defaultValue = objectGetOwn(optionConfig, 'default');
const defaultValue = objectGetOwn(optionConfig, 'default');
if (defaultValue !== undefined) {
if (optionType === 'string' && !multipleOption) {
validateString(defaultValue, `options.${longOption}.default`);
} else if (optionType === 'string' && multipleOption) {
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13 changes: 13 additions & 0 deletions test/parallel/test-parse-args.mjs
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Expand Up @@ -833,6 +833,19 @@ test('default must be a boolean when option type is boolean', () => {
);
});

test('default must accept undefined value', () => {
const args = [];
const options = { alpha: { type: 'boolean', default: undefined } };
const result = parseArgs({ args, options });
const expected = {
values: {
__proto__: null,
},
positionals: []
};
assert.deepStrictEqual(result, expected);
});

test('default must be a boolean array when option type is boolean and multiple', () => {
const args = [];
const options = { alpha: { type: 'boolean', multiple: true, default: 'not an array' } };
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