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[update] stringify with comma:true to decode comma for an array as a reserved char per RFC3986 #338

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[update] stringify with comma:true to decode comma for an array as a reserved char per RFC3986 #338

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15 changes: 15 additions & 0 deletions lib/stringify.js
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Expand Up @@ -100,6 +100,21 @@ var stringify = function stringify(
return [formatter(prefix) + '=' + formatter(String(obj))];
}

if (generateArrayPrefix === 'comma' && isArray(obj)) {
if (formatter !== formats.formatters['RFC3986']) {
obj = obj.join(',');
} else {
if (encoder) {
var commaKey = encodeValuesOnly ? prefix : encoder(prefix, defaults.encoder, charset, 'key');
var commaValue = obj.map(function (item) {
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we can't add a dependency on .map here.

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what is wrong with the .map?

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@ljharb ljharb May 2, 2020 •
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@petersolopov Pre-ES5 browsers won't have it. The PR can be rebased and use utils.maybeMap instead.

return formatter(encoder(item, defaults.encoder, charset, 'value'));
});
return [formatter(commaKey) + '=' + commaValue];
}
return [formatter(prefix) + '=' + formatter(String(obj))];
}
}

var values = [];

if (typeof obj === 'undefined') {
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16 changes: 14 additions & 2 deletions test/stringify.js
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Expand Up @@ -105,7 +105,17 @@ test('stringify()', function (t) {
);
st.equal(
qs.stringify({ a: ['b', 'c', 'd'] }, { arrayFormat: 'comma' }),
'a=b%2Cc%2Cd',
'a=b,c,d',
'comma => comma'
);
st.equal(
qs.stringify({ a: ['b', 'c', 'd'] }, { arrayFormat: 'comma', format: 'RFC3986' }),
'a=b,c,d',
'comma => comma'
);
st.equal(
qs.stringify({ a: ['b', 'c', 'd'] }, { arrayFormat: 'comma', format: 'RFC1738' }),
'a=b%2cc%2cd',
'comma => comma'
);
st.equal(
Expand Down Expand Up @@ -134,7 +144,9 @@ test('stringify()', function (t) {
t.test('stringifies a nested array value', function (st) {
st.equal(qs.stringify({ a: { b: ['c', 'd'] } }, { arrayFormat: 'indices' }), 'a%5Bb%5D%5B0%5D=c&a%5Bb%5D%5B1%5D=d');
st.equal(qs.stringify({ a: { b: ['c', 'd'] } }, { arrayFormat: 'brackets' }), 'a%5Bb%5D%5B%5D=c&a%5Bb%5D%5B%5D=d');
st.equal(qs.stringify({ a: { b: ['c', 'd'] } }, { arrayFormat: 'comma' }), 'a%5Bb%5D=c%2Cd'); // a[b]=c,d
st.equal(qs.stringify({ a: { b: ['c', 'd'] } }, { arrayFormat: 'comma' }), 'a%5Bb%5D=c,d'); // a[b]=c,d
st.equal(qs.stringify({ a: { b: ['c', 'd'] } }, { arrayFormat: 'comma', format: 'RFC3986' }), 'a%5Bb%5D=c,d'); // a[b]=c,d
st.equal(qs.stringify({ a: { b: ['c', 'd'] } }, { arrayFormat: 'comma', format: 'RFC1738' }), 'a%5Bb%5D=c%2cd'); // a[b]=c,d
st.equal(qs.stringify({ a: { b: ['c', 'd'] } }), 'a%5Bb%5D%5B0%5D=c&a%5Bb%5D%5B1%5D=d');
st.end();
});
Expand Down