72 lines
1.7 KiB
TypeScript
72 lines
1.7 KiB
TypeScript
//// [typeGuardsWithAny.ts]
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var x: any = { p: 0 };
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if (x instanceof Object) {
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x.p; // No error, type any unaffected by instanceof type guard
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}
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else {
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x.p; // No error, type any unaffected by instanceof type guard
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}
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if (typeof x === "string") {
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x.p; // Error, type any narrowed by primitive type check
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}
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else {
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x.p; // No error, type unaffected in this branch
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}
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if (typeof x === "number") {
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x.p; // Error, type any narrowed by primitive type check
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}
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else {
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x.p; // No error, type unaffected in this branch
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}
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if (typeof x === "boolean") {
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x.p; // Error, type any narrowed by primitive type check
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}
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else {
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x.p; // No error, type unaffected in this branch
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}
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if (typeof x === "object") {
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x.p; // No error, type any only affected by primitive type check
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}
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else {
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x.p; // No error, type unaffected in this branch
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}
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//// [typeGuardsWithAny.js]
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var x = { p: 0 };
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if (x instanceof Object) {
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x.p; // No error, type any unaffected by instanceof type guard
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}
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else {
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x.p; // No error, type any unaffected by instanceof type guard
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}
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if (typeof x === "string") {
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x.p; // Error, type any narrowed by primitive type check
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}
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else {
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x.p; // No error, type unaffected in this branch
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}
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if (typeof x === "number") {
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x.p; // Error, type any narrowed by primitive type check
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}
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else {
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x.p; // No error, type unaffected in this branch
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}
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if (typeof x === "boolean") {
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x.p; // Error, type any narrowed by primitive type check
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}
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else {
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x.p; // No error, type unaffected in this branch
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}
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if (typeof x === "object") {
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x.p; // No error, type any only affected by primitive type check
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}
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else {
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x.p; // No error, type unaffected in this branch
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}
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