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Solution #2514
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Patryk-Filipiak
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Solution #2514
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Original file line number | Diff line number | Diff line change |
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@@ -5,7 +5,27 @@ | |
* @param {Object[]} actions | ||
*/ | ||
function transformState(state, actions) { | ||
// write code here | ||
for (const action of actions) { | ||
switch (action.type) { | ||
case 'addProperties': | ||
Object.assign(state, action.extraData); | ||
break; | ||
|
||
case 'removeProperties': | ||
for (const key of action.keysToRemove) { | ||
delete state[key]; | ||
} | ||
break; | ||
|
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case 'clear': | ||
for (const key in state) { | ||
delete state[key]; | ||
} | ||
break; | ||
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. please add empty line after break so it's easier to read There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. done |
||
} | ||
} | ||
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return state; | ||
} | ||
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module.exports = transformState; |
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this can also be achieved using spread operator which is more common nowadays
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Are you sure? The state object should be mutable, and the spread operator creates a copy of it without mutating it. I also cannot change the values of the state because parameters of a function cannot be reassigned, in my opinion its the best way to do
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That's correct, it's very nice that you provided an argument.