I have this method to get data from an API, which sends me information of many furniture pieces:
loadPieces() {
this.isLoading = true;
axios.get(this.galleryRoute)
.then(r => {
this.gallery = r.data;
this.isLoading = false;
})
.catch(error => {
this.$nextTick(() => this.loadPieces());
});
console.log(this.galleryRoute);
},
This is a part of the response I get, which represents only one piece:
[[{"id":266,"name":" Tray 7x45x32, white stained ash","thumbnail":{"width":840,"height":840,"urls":{"raw":"http:\/\/localhost:8888\/storage\/9c\/9d\/9c9dadc6-15a2-11e8-a80a-5eaddf2d1b4a.jpeg","small":"http:\/\/localhost:8888\/storage\/9c\/9d\/9c9dadc6-15a2-11e8-a80a-5eaddf2d1b4a#140.jpeg","medium":"http:\/\/localhost:8888\/storage\/9c\/9d\/9c9dadc6-15a2-11e8-a80a-5eaddf2d1b4a#420.jpeg"}}},
Now I want to create a filter so that I can get a specific piece from the JSON object, using it's id. I've tried searching but so far I have no idea how to do this.
Thanks in advance!
Add a computed property which applies the filter to this.gallery:
computed: {
filteredGallery() {
if (!this.gallery) return []; // handle gallery being unset in whatever way
return this.gallery.filter(picture =>
// some reason to show picture
);
}
}
I'm assuming gallery is an array, but you could apply a similar technique to it if it was an object, using e.g. Object.keys(this.gallery).
Then in your template, use filteredGallery instead of gallery.
Related
I have a Grid component which includes 24 divs and inside of each div I need to take the value.
This value actually arrives in <p>, so which is the best way to do this?
Below is the app image. I would appreciate an example.
You could probably do something like storing the data in an object or array outside of the Cypress chain. Without a code example, here's my best guess.
cy.get('grid').within(() => { // cy.within() searches only within yielded element
const data = {}; // create data object
cy.get('div').each(($div, index) => { // cy.each() allows us to iterate through yielded elements
data[index] = $div.text() // or possibly some other JQuery command to get the value
// additionally, could go without the index at all and make `data` an array.
}).then(() => {
// whatever needs to be done with `data`, wrapped in `then` to make sure data is populated correctly.
});
});
You can add use each for this to loop through the elements and then do further operations:
cy.get('.chakra-stack')
.find('p')
.each(($ele) => {
cy.log($ele.text().trim()) //Logs all the texts one by one
})
Just add the p selector to your cy.get() command
cy.get('div.chakra-stack p') // access <p> within <div>
.each($el => {
cy.wrap($el).invoke('text')
.then(text => {
...
})
})
To get the value before the text
cy.get('div.chakra-stack p') // access <p> within <div>
.each($el => {
cy.wrap($el)
.prev() // element with value
.invoke('text')
.then(value => {
...
})
})
Accessing values by text label like this
const values = {}
cy.get('div.chakra-stack p')
.each($el => {
const frase = $el.text()
cy.wrap($el).prev().invoke('text')
.then(value => values[frase] = +value)
})
.then(() => {
// values = {'shield': 1, 'session': 2, ...}
})
I have an Set array which contains multiple Ids.I would like to loop through the Set and make the api calls in parallel for each id and get back the user object, add it to a map.How can i achieve it.
The value is Set
userIds :Set[2]
0:"1"
1:"2"
data() {
return {
userIds: new Set(),
};
},
const res = getUsers(userId)
hope it will resolve your issues. i did not test, just writing code here directly.
// set requests
let allRequests = []
//you can use other loop based on your decession
this.userIds.forEach(id => { allRequests.push(axios.get(`your_url\${id}`)) })
// you can use await it is based on you requirement
axios.all(allRequests).then(axios.spread((...responses) => {
//make your map here using responses
})).catch(errors => {
// react on errors.
})
you can check this reference
I am currently working with a API that does not return JSON. To get around this, I take the response and push it to a array ( while formatting it to remove any indentation and split each number in the response ). I then use this array of 183 numbers and run a for loop against an array with 183 characters to generate an object ( with custom key value pairs ) from the response.
Where things get confusing is when I start to use the data in my HTML. Usually you can just say <p>{data.overallRank}</p> but I am getting the error that the object is undefined. This makes sense because the data = {} was not created until the function ran.
After searching for a solution, I cam across svelte await blocks. You can read on them here and look at the tutorial : https://svelte.dev/tutorial/await-blocks
After trying to implement this feature, I have the following code.
let playerStats = []
let proxy = "https://cors-anywhere.herokuapp.com/"
let url = proxy + "https://secure.runescape.com/m=hiscore_oldschool/index_lite.ws?player=Hess"
const data = {};
let promise = getPlayer();
async function getPlayer() {
return await fetch(url).then((response) => response.text())
.then((data) => {
return data;
});
}
getPlayer().then((playerData) => {
// format data
playerStats.push(playerData.replace(/\n/ig, ",").split(','));
console.log(playerStats);
// Begin object generation
// names array shortened
let names = ["overallRank", "overallLvl", "overallXP", "attRank", ]
const data = {};
for (var i = 0; i < playerStats[0].length; i++) {
data[names[i]] = playerStats[0][i];
}
console.log(data);
});
<main>
{#await promise}
<p>Search for a Player...</p>
{:then data}
<p>The data is {data}</p>
{/await}
</main>
I suggest throwing this code in a svelte editor which you can find here: https://svelte.dev/tutorial/await-blocks
The issue with this code is that it is printing out the data from the return data, which returns the unformatted data and not the object.
I want to return the object that is created after the second function getplayer().then()... so I can use that object throughout my HTML.
I hope I explained things well and thank you in advance for any help.
It is returning the formatted data because that what is returned by the promise function. In order to get the formatted data, you have to add the formatting to the chain of promise
async function getPlayer() {
return await fetch(url)
.then((response) => response.text())
.then((playerData) => {
// here your transformation
// do not forget to actually return something
return data;
});
You were actually very close to sorting it out, just a bit of confusion regarding how promises work I believe.
All you need to do is format your data within the block where the data is handled following the fetch & decode operations:
async function getPlayer() {
return await fetch(url)
.then((response) => response.text())
.then((data) => {
return formatData(data);
});
}
Your formatData() function is essentially there already, you just need minor changes in your code:
function formatData(playerData) {
playerStats.push(playerData.replace(/\n/ig, ",").split(','));
console.log(playerStats);
// Begin object generation
// names array shortened
let names = ["overallRank", "overallLvl", "overallXP", "attRank", ]
const data = {};
for (var i = 0; i < playerStats[0].length; i++) {
data[names[i]] = playerStats[0][i];
}
console.log(data);
return data;
}
Finally, you do not need to explicitly declare a promise to use it in an {#await} block, you know getPlayer() returns a promise, so you can directly use that instead:
<main>
{#await getPlayer()}
<p>Search for a Player...</p>
{:then data}
<p>Overall Rank: {data.overallRank}</p>
{/await}
</main>
See functioning REPL
I am using Quasar Framework and using the Q-Select with filter.
I would like to the first filtered option always be already marked, because then if I hit enter, the first will selected.
After some research I found out how to achieve this in a generic way.
The second parameter on the function update received at filterFn is the instance of QSelect itself.
Hence, we can use
ref.setOptionIndex(-1);
ref.moveOptionSelection(1, true);
To keep the focus on the first filtered element, regardless of multiselect or not.
The final code is something like
filterFn(val, update) {
update(
() => {
const needle = val.toLocaleLowerCase();
this.selectOptions = this.qSelectOptions.filter(v => v.toLocaleLowerCase().indexOf(needle) > -1);
},
ref => {
ref.setOptionIndex(-1);
ref.moveOptionSelection(1, true);
});
}
There is one option to achieve this is set model value in the filter method if filtered options length is >0.
filterFn (val, update, abort) {
update(() => {
const needle = val.toLowerCase()
this.options = stringOptions.filter(v => v.toLowerCase().indexOf(needle) > -1)
if(this.options.length>0 && this.model!=''){
this.model = this.options[0];
}
})
}
Codepen - https://codepen.io/Pratik__007/pen/QWjYoNo
I have tried searching everywhere, from stackoverflow to GitHub but i can get a solution. I am trying to get list of users by using their userid that I get from a collection of businesses. What Am i doing wrong?
componentWillMount() {
//Loading all the business collections.
firebase.firestore().collection("business").onSnapshot((snapshot) => {
var bizs = [];
snapshot.forEach((bdt) => {
var userdt = [];
//get document id of a certain user in the business collections
firebase.firestore().collection('users').where("userid", "==", bdt.data().userid).get()
.then((snap) => {
snap.forEach(dc => {
//loading details of the user from a specific ID
firebase.firestore().collection("users").doc(dc.id).onSnapshot((udt) => {
userdt.push({
name: udt.data().fullname,
photourl: udt.data().photoURL,
location: bdt.data().location,
openhrs: bdt.data().openHrs,
likes: '20',
reviews: '3002',
call: bdt.data().contacts
});
console.log(userdt); //this one works
})
console.log(userdt); // but this one doesnt diplay anything just []
})
}).catch((dterr) => {
console.log(dterr)
})
});
this.setState({bizdata: bizs,loading: false
});
});
}
I am using react-native and firestore
Put log with some number,
like,
console.log('1',userdt);
console.log('2',userdt);
and check weather which one is appearing first, Maybe '2' is executing before updating the data