104 lines
2.4 KiB
JavaScript
104 lines
2.4 KiB
JavaScript
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const a = {
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a: "a"
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};
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const b = {
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'b': "b"
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};
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const b2 = {
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// Escapes should stay as escapes and not be unquoted.
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'\u0062': "b",
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'\u0031': "1"
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};
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const c = {
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c1: "c1",
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'c2': "c2"
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};
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const d = {
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d1: "d1",
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'd-2': "d2"
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};
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// None of these should become quoted, regardless of the quoteProps value.
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const e = {
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NaN: null,
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1: null,
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1.5: null,
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.1: null,
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1.: null,
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1.0: null,
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999999999999999999999: null,
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0.99999999999999999: null,
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1E2: null,
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1e+3: null,
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1e+100: null,
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0b10: null,
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0o10: null,
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0xf: null,
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// Commented out because Flow does not parse BigInt as object keys.
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// 2n: null,
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}
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const f = {
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// This should be unquoted for quoteProps=as-needed.
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"NaN": null,
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// Flow does parses number keys, but errors on them during type checking so
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// don’t unquote them:
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"1": null,
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"1.5": null,
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// These should never be unquoted. `1e+100` technically could (it’s the only
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// one where `String(Number(key)) === key`), but we came to the conclusion
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// that it is unexpected.
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".1": null,
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"1.": null,
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"1.0": null,
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"999999999999999999999": null,
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"0.99999999999999999": null,
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"1E2": null,
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"1e+3": null,
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"1e+100": null,
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"0b10": null,
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"0o10": null,
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"0xf": null,
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"2n": null,
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}
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Object.entries({
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// To force quotes for quoteProps=consistent.
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'a-': 'a-',
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// These can be quoted:
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NaN: 'NaN',
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1: '1',
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1.5: '1.5',
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// Prettier will normalize these to `0.1` and `1` – then they can be quoted.
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.1: '.1',
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1.: '1.',
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// These should never be quoted. The _actual_ keys are shown as comments.
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// Copy-paste this into the console to verify. If we were to convert these
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// numbers into decimal (which completely valid), “information/intent” is
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// lost. Either way, writing code like this is super confusing.
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1.0: '1.0', // 1
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999999999999999999999: '999999999999999999999', // 1e+21
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0.99999999999999999: '0.99999999999999999', // 1
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1E2: '1E2', // 100
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1e+3: '1e+3', // 1000
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1e+100: '1e+100', // 1e+100 – this one is identical, but would be inconsistent to quote.
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0b10: '0b10', // 2
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0o10: '0o10', // 8
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0xf: '0xf', // 15
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// Commented out because Flow does not parse BigInt as object keys.
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// 2n: '2n', // 2
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0xb_b: '0xb_b', // 187
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// 0xb_b_bn: '0xb_b_bn', // 3003
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// 0xan: '0xan', // 10
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// 0b100000000000_000000000000000011n: '0b100000000000_000000000000000011n' // 536870915
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})
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// Negative numbers cannot be unquoted.
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!{
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"-1": null,
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"-1.5": null,
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}
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