我试图过滤数组中的某些对象。但是当我这样做时,我只得到一个空数组。
代码:
let guilds = guildsData.filter((el) => {
return el.owner == 'true';
});
console.log(guilds);
阵列:
[
{ owner: false,
permissions: 2146958463,
icon: 'e568d2b87e31358588cb982354628d51',
id: '267920024570691586',
name: 'Hydra' },
{ owner: true,
permissions: 2146958463,
icon: null,
id: '269159705794838529',
name: 'test 2' } ]
(我删除了大部分对象,但它们看起来都像这样)
答案 0 :(得分:5)
字符串'true'
与布尔常量true
不同。
当==
的一边是布尔值而另一边是其他边时,比较是在将该布尔值转换为数字后完成的。因此
'true' == true
以
执行'true' == 1
答案 1 :(得分:1)
试试这个:
$('.parent-element-selector-here').on('click', '.fa-unlock-alt, .fa-lock', function () {
var $button = $(this);
if ($button.hasClass('fa-unlock-alt')) {
// do this
} else {
// do that
}
});
无需将class GameScene: SKScene, SKPhysicsContactDelegate {
var health = SKSpriteNode()
var healthTimer = Timer()
var progressValue = 350
func startHealthTimer() {
progressValue += 20
}
override func didMove(to view: SKView) {
healthTimer = Timer.scheduledTimer(timeInterval: 1, target: self, selector: #selector(self.startHealthTimer), userInfo: nil, repeats: true)
}
override func update(_ currentTime: TimeInterval) {
let healthTexture = SKTexture(imageNamed: "health.png")
health = SKSpriteNode(color: .white, size: CGSize(width: progressValue, height: 30))
health.position = CGPoint(x: -self.frame.width / 2 + healthTexture.size().width / 2, y: self.frame.height / 2)
health.zPosition = 2
self.addChild(health)
}
与let guilds = guildsData.filter((el) => {
return el.owner;
});
进行比较(无论如何它们都不相同)。