50 lines
952 B
JavaScript
50 lines
952 B
JavaScript
/* @flow */
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function optionalNullable1(x: {y?: ?number}) {
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if (x.y !== null && x.y !== undefined) {
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x.y++;
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}
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}
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function optionalNullable2(x: {y?: ?number}) {
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if (x.y !== undefined && x.y !== null) {
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x.y++;
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}
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}
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function optionalNullable3(x: {y?: ?number}) {
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if (!(x.y !== null && x.y !== undefined)) {
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x.y++; // should error
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}
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}
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function optionalNullable4(x: {y?: ?number}) {
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if (!(x.y !== undefined && x.y !== null)) {
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x.y++; // should error
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}
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}
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function optionalNullable5(x: {y?: ?number}) {
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if (x.y === null || x.y === undefined) {
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x.y++; // should error
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}
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}
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function optionalNullable6(x: {y?: ?number}) {
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if (x.y === undefined || x.y === null) {
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x.y++; // should error
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}
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}
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function optionalNullable7(x: {y?: ?number}) {
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if (!(x.y === null || x.y === undefined)) {
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x.y++;
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}
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}
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function optionalNullable8(x: {y?: ?number}) {
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if (!(x.y === undefined || x.y === null)) {
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x.y++;
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}
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}
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