优化这段代码this.records = res.data.data.map(item=>{ item.enclosures = JSON.parse(item.enclosures) return item })
时间: 2023-04-01 19:03:46 浏览: 63
这段代码可以优化为:
this.records = res.data.data.map(item => {
return {
...item,
enclosures: JSON.parse(item.enclosures)
}
})
相关问题
iec 60529:2013 degrees of protection provided by enclosures (ip code)
IEC 60529:2013是一个国际标准,用于定义电气和电子设备的外壳对固体物体和液体的防护程度,也称为IP代码(Ingress Protection code)。
IP代码分为两个数字,第一个数字表示对固体物体的保护程度,第二个数字表示对液体的保护程度。在IEC 60529:2013标准中,这两个数字各自有不同的等级。
第一个数字从0到6,表示对固体物体的防护级别。0表示没有保护,6表示对尘土的完全防护。例如,IP67表示对固体物体的防护等级为6,即完全对尘土的防护。
第二个数字从0到8,表示对液体的防护级别。0表示没有保护,8表示对持续浸入水中没有影响的防护。例如,IP68表示对液体的防护等级为8,即能够长时间浸入水中而没有影响。
IEC 60529:2013标准的目的是为了提供一个统一的标准,使消费者能够了解和比较不同设备之间的防护能力。IP代码的使用广泛,尤其在电气和电子设备的选择、安装和维护方面起到重要的作用。
总之,IEC 60529:2013标准定义了电气和电子设备的外壳对固体物体和液体的防护级别,并通过IP代码来表示。这一标准的实施使消费者能够了解设备的防护能力,从而做出更好的选择和决策。
怎么提高线路板抗干扰
能力?
There are several ways to improve the anti-interference ability of a printed circuit board (PCB). Here are some of the most common methods:
1. Increase the thickness of the PCB: The thicker the PCB, the better it will be able to resist interference from external sources.
2. Use a ground plane: A ground plane is a large area of metal that covers the entire PCB. This helps to reduce interference by providing a common reference point for all the signals on the board.
3. Shielding: Shielding is the use of metal to block interference from entering or leaving the PCB. This can be done by adding metal layers to the PCB or by using metal enclosures around the PCB.
4. Proper routing: Proper routing of signals on the PCB can help to reduce interference. This means keeping sensitive signals away from sources of interference and making sure that signals are not run near power lines or other high-frequency sources.
5. Using high-quality components: Using high-quality components that are designed to resist interference can also help to improve the anti-interference ability of a PCB.