16 lines
159 B
Markdown
16 lines
159 B
Markdown
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```js run
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let salaries = {
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John: 100,
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Ann: 160,
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Pete: 130
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}
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let sum = 0;
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for(let key in salaries) {
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sum += salaries[key];
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}
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alert(sum); // 390
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```
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