24 lines
405 B
Markdown
24 lines
405 B
Markdown
importance: 5
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---
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# Create a calculator
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Create an object `calculator` with three methods:
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- `read()` prompts for two values and saves them as object properties.
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- `sum()` returns the sum of saved values.
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- `mul()` multiplies saved values and returns the result.
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```js
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let calculator = {
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// ... your code ...
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};
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calculator.read();
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alert( calculator.sum() );
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alert( calculator.mul() );
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```
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[demo]
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