30秒学会 JavaScript 片段 – truthCheckCollection

Checks if the predicate (second argument) is truthy on all elements of a collection (first argument).

Use Array.prototype.every() to check if each passed object has the specified property and if it returns a truthy value.

代码片段

const truthCheckCollection = (collection, pre) => collection.every(obj => obj[pre]);

使用样例

truthCheckCollection([{ user: 'Tinky-Winky', sex: 'male' }, { user: 'Dipsy', sex: 'male' }], 'sex'); // true