Use the find() method: myArray.find(x => x.id === '45').foo;. From MDN: The find() method returns the first value in the array, if an element in the array ... ... <看更多>

find () 與filter() 很像，但find() 只會回傳一次值，且是第一次為true 的值。 var findEmpty = people.find(function(item, index, array){ }); ... ... <看更多>

In ES5, to find an element in an array, you use the indexOf() or lastIndexOf() methods. However, these methods are quite limited because they return the index ... ... <看更多>

Remove object from array of objects in Javascript. GitHub Gist: instantly share code, notes, and snippets. ... <看更多>

Find object by id in an array of JavaScript objects. Watch later. Share. Copy link. Info. Shopping. Tap to unmute. ... <看更多>

First count the number of distinct numbers. You have called it n . Then SELECT COUNT(*) FROM tbl WHERE id IN (very-long-list). See if that returns n . ... <看更多>