4.4 KiB
4.4 KiB
id | title | challengeType | isRequired | videoUrl | localeTitle |
---|---|---|---|---|---|
5a24c314108439a4d403616e | Access Props Using this.props | 6 | false | 使用this.props访问道具 |
Description
this
关键字。一类组件中访问的道具,你前言您使用与访问它的代码this
。例如,如果ES6类组件具有名为data
的prop,则在JSX中编写{this.props.data}
。 Instructions
ResetPassword
呈现ReturnTempPassword
组件的实例。在这里,给ReturnTempPassword
一个tempPassword
的prop,并为它tempPassword
一个至少8个字符长的字符串的值。在子项ReturnTempPassword
,访问strong
标记内的tempPassword
prop,以确保用户看到临时密码。 Tests
tests:
- text: <code>ResetPassword</code>组件应返回单个<code>div</code>元素。
testString: 'assert((function() { const mockedComponent = Enzyme.mount(React.createElement(ResetPassword)); return mockedComponent.children().type() === "div"; })(), "The <code>ResetPassword</code> component should return a single <code>div</code> element.");'
- text: <code>ResetPassword</code>的第四个子<code>ResetPassword</code>应该是<code>ReturnTempPassword</code>组件。
testString: 'assert((function() { const mockedComponent = Enzyme.mount(React.createElement(ResetPassword)); return mockedComponent.children().childAt(3).name() === "ReturnTempPassword"; })(), "The fourth child of <code>ResetPassword</code> should be the <code>ReturnTempPassword</code> component.");'
- text: <code>ReturnTempPassword</code>组件应该有一个名为<code>tempPassword</code>的prop。
testString: 'assert((function() { const mockedComponent = Enzyme.mount(React.createElement(ResetPassword)); return mockedComponent.find("ReturnTempPassword").props().tempPassword; })(), "The <code>ReturnTempPassword</code> component should have a prop called <code>tempPassword</code>.");'
- text: <code>ReturnTempPassword</code>的<code>tempPassword</code>道具应该等于至少<code>8</code>字符的字符串。
testString: 'assert((function() { const mockedComponent = Enzyme.mount(React.createElement(ResetPassword)); const temp = mockedComponent.find("ReturnTempPassword").props().tempPassword; return typeof temp === "string" && temp.length >= 8; })(), "The <code>tempPassword</code> prop of <code>ReturnTempPassword</code> should be equal to a string of at least <code>8</code> characters.");'
- text: <code>ReturnTempPassword</code>组件应显示您在<code>strong</code>标记内作为<code>tempPassword</code>支柱创建的密码。
testString: 'assert((function() { const mockedComponent = Enzyme.mount(React.createElement(ResetPassword)); return mockedComponent.find("strong").text() === mockedComponent.find("ReturnTempPassword").props().tempPassword; })(), "The <code>ReturnTempPassword</code> component should display the password you create as the <code>tempPassword</code> prop within <code>strong</code> tags.");'
Challenge Seed
class ReturnTempPassword extends React.Component {
constructor(props) {
super(props);
}
render() {
return (
<div>
{ /* change code below this line */ }
<p>Your temporary password is: <strong></strong></p>
{ /* change code above this line */ }
</div>
);
}
};
class ResetPassword extends React.Component {
constructor(props) {
super(props);
}
render() {
return (
<div>
<h2>Reset Password</h2>
<h3>We've generated a new temporary password for you.</h3>
<h3>Please reset this password from your account settings ASAP.</h3>
{ /* change code below this line */ }
{ /* change code above this line */ }
</div>
);
}
};
After Test
console.info('after the test');
Solution
// solution required