18 lines
284 B
Markdown
18 lines
284 B
Markdown
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The answer is:
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- `a = 2`
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- `b = 2`
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- `c = 2`
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- `d = 1`
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```js run no-beautify
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let a = 1, b = 1;
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alert( ++a ); // 2, prefix form returns the new value
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alert( b++ ); // 1, postfix form returns the old value
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alert( a ); // 2, incremented once
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alert( b ); // 2, incremented once
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```
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