29 lines
1 KiB
Plaintext
29 lines
1 KiB
Plaintext
tests/cases/compiler/unknownSymbolOffContextualType1.ts(16,18): error TS2339: Property 'xyxyxyx' does not exist on type 'HTMLElement'.
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==== tests/cases/compiler/unknownSymbolOffContextualType1.ts (1 errors) ====
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declare var document: Document;
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interface Document {
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getElementById(elementId: string): HTMLElement;
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}
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interface HTMLElement {
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isDisabled: boolean;
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}
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function getMaxWidth(elementNames: string[]) {
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var elements = elementNames.map(function (name) {
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return document.getElementById(name);
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});
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var enabled = elements.filter(function (e) {
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return !e.isDisabled;
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});
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var widths = enabled.map(function (e) {
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return e.xyxyxyx; // error expected here
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~~~~~~~
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!!! error TS2339: Property 'xyxyxyx' does not exist on type 'HTMLElement'.
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});
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var maxWidth = widths.reduce(function (a, b) {
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return a > b ? a : b;
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});
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return maxWidth;
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}
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