* chore: rename APIs and Microservices to include "Backend" (#42515) * fix typo * fix typo * undo change * Corrected grammar mistake Corrected a grammar mistake by removing a comma. * change APIs and Microservices cert title * update title * Change APIs and Microservices certi title * Update translations.json * update title * feat(curriculum): rename apis and microservices cert * rename folder structure * rename certificate * rename learn Markdown * apis-and-microservices -> back-end-development-and-apis * update backend meta * update i18n langs and cypress test Co-authored-by: Shaun Hamilton <shauhami020@gmail.com> * fix: add development to front-end libraries (#42512) * fix: added-the-word-Development-to-front-end-libraries * fix/added-the-word-Development-to-front-end-libraries * fix/added-word-development-to-front-end-libraries-in-other-related-files * fix/added-the-word-Development-to-front-end-and-all-related-files * fix/removed-typos-from-last-commit-in-index.md * fix/reverted-changes-that-i-made-to-dependecies * fix/removed xvfg * fix/reverted changes that i made to package.json * remove unwanted changes * front-end-development-libraries changes * rename backend certSlug and README * update i18n folder names and keys * test: add legacy path redirect tests This uses serve.json from the client-config repo, since we currently use that in production * fix: create public dir before moving serve.json * fix: add missing script * refactor: collect redirect tests * test: convert to cy.location for stricter tests * rename certificate folder to 00-certificates * change crowdin config to recognise new certificates location * allow translations to be used Co-authored-by: Nicholas Carrigan (he/him) <nhcarrigan@gmail.com> * add forwards slashes to path redirects * fix cypress path tests again * plese cypress * fix: test different challenge Okay so I literally have no idea why this one particular challenge fails in Cypress Firefox ONLY. Tom and I paired and spun a full build instance and confirmed in Firefox the page loads and redirects as expected. Changing to another bootstrap challenge passes Cypress firefox locally. Absolutely boggled by this. AAAAAAAAAAAAAAA * fix: separate the test Okay apparently the test does not work unless we separate it into a different `it` statement. >:( >:( >:( >:( Co-authored-by: Sujal Gupta <55016909+heysujal@users.noreply.github.com> Co-authored-by: Noor Fakhry <65724923+NoorFakhry@users.noreply.github.com> Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com> Co-authored-by: Nicholas Carrigan (he/him) <nhcarrigan@gmail.com>
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id, title, challengeType, forumTopicId, dashedName
id | title | challengeType | forumTopicId | dashedName |
---|---|---|---|---|
5a24c314108439a4d4036184 | Render with an If-Else Condition | 6 | 301410 | render-with-an-if-else-condition |
--description--
Another application of using JavaScript to control your rendered view is to tie the elements that are rendered to a condition. When the condition is true, one view renders. When it's false, it's a different view. You can do this with a standard if/else
statement in the render()
method of a React component.
--instructions--
MyComponent contains a boolean
in its state which tracks whether you want to display some element in the UI or not. The button
toggles the state of this value. Currently, it renders the same UI every time. Rewrite the render()
method with an if/else
statement so that if display
is true
, you return the current markup. Otherwise, return the markup without the h1
element.
Note: You must write an if/else
to pass the tests. Use of the ternary operator will not pass here.
--hints--
MyComponent
should exist and render.
assert(
(function () {
const mockedComponent = Enzyme.mount(React.createElement(MyComponent));
return mockedComponent.find('MyComponent').length === 1;
})()
);
When display
is set to true
, a div
, button
, and h1
should render.
async () => {
const waitForIt = (fn) =>
new Promise((resolve, reject) => setTimeout(() => resolve(fn()), 250));
const mockedComponent = Enzyme.mount(React.createElement(MyComponent));
const state_1 = () => {
mockedComponent.setState({ display: true });
return waitForIt(() => mockedComponent);
};
const updated = await state_1();
assert(
mockedComponent.find('div').length === 1 &&
mockedComponent.find('div').children().length === 2 &&
mockedComponent.find('button').length === 1 &&
mockedComponent.find('h1').length === 1
);
};
When display
is set to false
, only a div
and button
should render.
async () => {
const waitForIt = (fn) =>
new Promise((resolve, reject) => setTimeout(() => resolve(fn()), 250));
const mockedComponent = Enzyme.mount(React.createElement(MyComponent));
const state_1 = () => {
mockedComponent.setState({ display: false });
return waitForIt(() => mockedComponent);
};
const updated = await state_1();
assert(
mockedComponent.find('div').length === 1 &&
mockedComponent.find('div').children().length === 1 &&
mockedComponent.find('button').length === 1 &&
mockedComponent.find('h1').length === 0
);
};
The render method should use an if/else
statement to check the condition of this.state.display
.
(getUserInput) =>
assert(
getUserInput('index').includes('if') &&
getUserInput('index').includes('else')
);
--seed--
--after-user-code--
ReactDOM.render(<MyComponent />, document.getElementById('root'))
--seed-contents--
class MyComponent extends React.Component {
constructor(props) {
super(props);
this.state = {
display: true
}
this.toggleDisplay = this.toggleDisplay.bind(this);
}
toggleDisplay() {
this.setState((state) => ({
display: !state.display
}));
}
render() {
// Change code below this line
return (
<div>
<button onClick={this.toggleDisplay}>Toggle Display</button>
<h1>Displayed!</h1>
</div>
);
}
};
--solutions--
class MyComponent extends React.Component {
constructor(props) {
super(props);
this.state = {
display: true
}
this.toggleDisplay = this.toggleDisplay.bind(this);
}
toggleDisplay() {
this.setState((state) => ({
display: !state.display
}));
}
render() {
// Change code below this line
if (this.state.display) {
return (
<div>
<button onClick={this.toggleDisplay}>Toggle Display</button>
<h1>Displayed!</h1>
</div>
);
} else {
return (
<div>
<button onClick={this.toggleDisplay}>Toggle Display</button>
</div>
);
}
}
};