64 lines
1.5 KiB
TypeScript
64 lines
1.5 KiB
TypeScript
//// [additionOperatorWithUndefinedValueAndValidOperator.ts]
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// If one operand is the null or undefined value, it is treated as having the type of the other operand.
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enum E { a, b, c }
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var a: any;
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var b: number;
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var c: E;
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var d: string;
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// undefined + any
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var r1: any = undefined + a;
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var r2: any = a + undefined;
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// undefined + number/enum
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var r3 = undefined + b;
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var r4 = undefined + 1;
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var r5 = undefined + c;
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var r6 = undefined + E.a;
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var r7 = undefined + E['a'];
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var r8 = b + undefined;
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var r9 = 1 + undefined;
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var r10 = c + undefined
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var r11 = E.a + undefined;
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var r12 = E['a'] + undefined;
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// undefined + string
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var r13 = undefined + d;
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var r14 = undefined + '';
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var r15 = d + undefined;
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var r16 = '' + undefined;
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//// [additionOperatorWithUndefinedValueAndValidOperator.js]
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// If one operand is the null or undefined value, it is treated as having the type of the other operand.
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var E;
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(function (E) {
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E[E["a"] = 0] = "a";
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E[E["b"] = 1] = "b";
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E[E["c"] = 2] = "c";
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})(E || (E = {}));
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var a;
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var b;
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var c;
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var d;
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// undefined + any
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var r1 = undefined + a;
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var r2 = a + undefined;
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// undefined + number/enum
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var r3 = undefined + b;
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var r4 = undefined + 1;
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var r5 = undefined + c;
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var r6 = undefined + E.a;
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var r7 = undefined + E['a'];
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var r8 = b + undefined;
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var r9 = 1 + undefined;
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var r10 = c + undefined;
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var r11 = E.a + undefined;
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var r12 = E['a'] + undefined;
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// undefined + string
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var r13 = undefined + d;
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var r14 = undefined + '';
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var r15 = d + undefined;
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var r16 = '' + undefined;
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