Reactjs 流-缺少类型批注
对于flow来说,这是一个非常新的概念,并且试图修复我的代码以包含flow。这是我目前的代码,我添加了流类型检查,现在出现了错误,因此我需要正确注释代码:Reactjs 流-缺少类型批注,reactjs,flowtype,Reactjs,Flowtype,对于flow来说,这是一个非常新的概念,并且试图修复我的代码以包含flow。这是我目前的代码,我添加了流类型检查,现在出现了错误,因此我需要正确注释代码: // @flow import React, { Component } from 'react'; import { Manager, Reference, Popper } from 'react-popper'; import cx from 'classnames'; import css from './Tooltip.css';
// @flow
import React, { Component } from 'react';
import { Manager, Reference, Popper } from 'react-popper';
import cx from 'classnames';
import css from './Tooltip.css';
import animationsCss from './TooltipAnimations.css';
type Props = {
theme: string,
eventsEnabled: boolean,
}
class Tooltip extends Component<Props> {
static defaultProps = {
theme: 'light',
eventsEnabled: true
};
firstOrderPlacement(placement) {
if (!placement) return null;
return placement.split('-')[0];
}
arrowDirectionClass(firstOrderPlacement) {
switch (firstOrderPlacement) {
case 'right':
return css.arrowLeft;
case 'left':
return css.arrowRight;
case 'top':
return css.arrowDown;
case 'bottom':
return css.arrowUp;
default:
return css.arrowUp;
}
}
render() {
const { placement, className, children, fadeIn, theme, eventsEnabled } = this.props;
return (
<Popper placement={placement} eventsEnabled={eventsEnabled}>
{({ ref, style, placement }) => {
const firstOrderPlacement = this.firstOrderPlacement(placement);
const arrowDirectionClass = this.arrowDirectionClass(firstOrderPlacement);
const subContainerStyle = {
display: 'flex',
flexDirection:
firstOrderPlacement === 'top' || firstOrderPlacement === 'bottom' ? 'column' : 'row',
};
const childrenContainerClassName = cx(
css.childrenContainer,
css.wrapper,
theme === "dark" ? css.dark : css.light
);
const content = <div className={childrenContainerClassName}>{children}</div>;
const subContainerClassName = fadeIn ? cx(animationsCss.fadeIn, className) : className;
return (
<div
ref={ref}
className={cx(css.container, css.mobileTooltip)}
style={style}
data-placement={placement}
>
<div className={subContainerClassName} style={subContainerStyle}>
{(firstOrderPlacement === 'left' || firstOrderPlacement === 'top') && content}
<div>
<div className={cx(css.arrow, arrowDirectionClass)} />
</div>
{(firstOrderPlacement === 'right' || firstOrderPlacement === 'bottom') && content}
</div>
</div>
);
}}
</Popper>
);
}
}
export { Manager as TooltipManager, Reference as TooltipReference, Tooltip };
我缺少这两个的类型注释,我不确定如何继续:
firstOrderPlacement(placement) {..}
arrowDirectionClass(firstOrderPlacement) {..}
有什么帮助吗
这些是正确的吗
placement: string,
className?: string,
children?: any,
fadeIn: any,
试试看
不过,请记住,使用any
是一种基本上可以关闭键入的快捷方式。对于子节点
需要react元素的地方,通常应该只使用react.node
。如果您基本上想要任意嵌套的类似DOM的内容,如react元素、元素数组、文本字符串等,这将起作用。fadeIn
看起来可能是一个字符串,但如果不看它来自何处,就很难分辨它
我缺少这两个的类型注释,我不确定如何继续:
firstOrderPlacement(placement) {..}
arrowDirectionClass(firstOrderPlacement) {..}
Flow希望您键入函数的参数。比如:
firstOrderPlacement(placement: string) {
或者随便什么。注释
道具
如:
type Props = {
...
placement: string,
className?: string,
children?: any,
fadeIn: any,
...
}
Placement
参数为stringfirstOrderPlacement(Placement){..}
,函数返回值为null
或string
,因此您可以使用可能类型
进行注释:
firstOrderPlacement(placement: string): ?string => {...}
或者使用联合类型,因为可能类型
包含未定义
type FirstOrder = string | null;
firstOrderPlacement
函数的结果是arrowDirectionClass
的参数。因此,参数类型:
arrowDirectionClass(firstOrderPlacement: ?string): string => {...}
或: