40 lines
1.1 KiB
TypeScript
40 lines
1.1 KiB
TypeScript
//// [intersectionTypeReadonly.ts]
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interface Base {
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readonly value: number;
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}
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interface Identical {
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readonly value: number;
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}
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interface Mutable {
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value: number;
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}
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interface DifferentType {
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readonly value: string;
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}
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interface DifferentName {
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readonly other: number;
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}
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let base: Base;
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base.value = 12 // error, lhs can't be a readonly property
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let identical: Base & Identical;
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identical.value = 12; // error, lhs can't be a readonly property
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let mutable: Base & Mutable;
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mutable.value = 12;
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let differentType: Base & DifferentType;
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differentType.value = 12; // error, lhs can't be a readonly property
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let differentName: Base & DifferentName;
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differentName.value = 12; // error, property 'value' doesn't exist
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//// [intersectionTypeReadonly.js]
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var base;
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base.value = 12; // error, lhs can't be a readonly property
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var identical;
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identical.value = 12; // error, lhs can't be a readonly property
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var mutable;
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mutable.value = 12;
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var differentType;
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differentType.value = 12; // error, lhs can't be a readonly property
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var differentName;
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differentName.value = 12; // error, property 'value' doesn't exist
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