44 lines
1.6 KiB
JavaScript
44 lines
1.6 KiB
JavaScript
//// [constructorParameterShadowsOuterScopes.ts]
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// Initializer expressions for instance member variables are evaluated in the scope of the class constructor
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// body but are not permitted to reference parameters or local variables of the constructor.
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// This effectively means that entities from outer scopes by the same name as a constructor parameter or
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// local variable are inaccessible in initializer expressions for instance member variables
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var x = 1;
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class C {
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b = x; // error, evaluated in scope of constructor, cannot reference x
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constructor(x: string) {
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x = 2; // error, x is string
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}
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}
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var y = 1;
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class D {
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b = y; // error, evaluated in scope of constructor, cannot reference y
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constructor(x: string) {
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var y = "";
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}
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}
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//// [constructorParameterShadowsOuterScopes.js]
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// Initializer expressions for instance member variables are evaluated in the scope of the class constructor
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// body but are not permitted to reference parameters or local variables of the constructor.
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// This effectively means that entities from outer scopes by the same name as a constructor parameter or
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// local variable are inaccessible in initializer expressions for instance member variables
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var x = 1;
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var C = (function () {
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function C(x) {
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this.b = x; // error, evaluated in scope of constructor, cannot reference x
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x = 2;
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}
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return C;
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})();
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var y = 1;
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var D = (function () {
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function D(x) {
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this.b = y; // error, evaluated in scope of constructor, cannot reference y
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var y = "";
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}
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return D;
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})();
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