19 lines
724 B
Markdown
19 lines
724 B
Markdown
### Truth-Check-Objects
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Check if the predicate (second argument) is truthy on all elements of a collection (first argument).
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- For every object in the collection array, check the truthiness of object’s property passed in pre parameter
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- Array#every method internally checks if the value returned from the callback is truthy.
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- Return true if it passes for every object. Otherwise, return false.
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- Also if the object is empty then it will return false
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```js
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truthCheck = (collection, pre) => (collection.every(obj => obj[pre]));
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truthCheck([{"user": "Tinky-Winky", "sex": "male"}, {"user": "Dipsy", "sex": "male"},
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{"user": "Laa-Laa", "sex": "female"}, {"user": "Po", "sex": "female"}], "sex");
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// true
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```
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