23 lines
493 B
JavaScript
23 lines
493 B
JavaScript
/* @flow */
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let tests = [
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function(x: string, y: number) {
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if (x == y) {} // error, string & number are not comparable (unsafe casting)
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if (x === y) {} // no error, to match `let z = (x === y)` which is allowed
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},
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function(x: string) {
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if (x == undefined) {} // ok
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if (x == void 0) {} // ok
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},
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function(x: string) {
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if (x == null) {} // ok
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},
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function(x: { y: 'foo' } | { y: 'bar' }) {
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if (x.y == 123) {} // error
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if (x.y === 123) {} // ok
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},
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]
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