This question already has answers here:
How can I merge properties of two JavaScript objects dynamically?
(69 answers)
Closed 5 months ago.
So I have two Object Arrays that I need to make one Object Array.
var insertEpisode = [{
"show_id":new ObjectId(req.body.show_id),
"show_b":req.body.show_b,
"season":new Double(req.body.season),
"episode_no": new Double(req.body.episode_no),
"title": req.body.title,
"summary": podsummary,
"description": description,
"explicit":req.body.explicit,
"enclosureurl":filesToEpisode[0].file.enclosureurl,
"enclosurebyts": filesToEpisode[0].file.enclosurebyts,
"duration":new Double(filesToEpisode[0].file.duration),
}];
and if there is a image to go with the episode I have
if(image){
var image = [{"image":"this "}]
const array3 = insertEpisode.concat(image);
}
however that does not work. instead it added prints out like
[{"show_id":"6274a3a881cf417136a8a4ed","show_b":"insiderelationships","season":1,"episode_no":40,"title":"Test Title","summary":"A week ago a friend invited a couple of other couples over for dinner. Eventually, the food (but not the wine) was cleared off the table for what turned out to be some fierce Scrabbling.","description":"<![CDATA[<p>A week ago a friend invited aco</p>]]>","explicit":"false","enclosureurl":"URL TO mp3.mp3","enclosurebyts":"173080","duration":00:01:00},{"image":"this "}]
Instead it should look like
[{"show_id":"6274a3a881cf417136a8a4ed","show_b":"insiderelationships","season":1,"episode_no":40,"title":"Test Title","summary":"A week ago a friend invited a couple of other couples over for dinner. Eventually, the food (but not the wine) was cleared off the table for what turned out to be some fierce Scrabbling.","description":"<![CDATA[<p>A week ago a friend invited aco</p>]]>","explicit":"false","enclosureurl":"URL TO mp3.mp3","enclosurebyts":"173080","duration":00:01:00, "image":"this "}]
You can see the image part is joined into the first array.
You can use this:
if (image) {
var image = [{"image":"this "}]
const merged = {...insertEpisode, ...image};
}
const array3 = insertEpisode.map((item, index) => {
item = Object.assign({}, item, image[index]);
});
If you need to add an existing image url to your object, can you just assign a new property to the object of your insertEpisode array?
if (image) {
insertEpisode[0].image = 'this';
}
Related
I'm working with an NBA API where one of the features is finding players by their last name.
The issue I have; is that multiple players can have the same last name, of course.
An example of the response from the API when sorting with last names:
"players": [
0: {
"firstName":"Anthony"
"lastName":"Davis"
"teamId":"17"
"yearsPro":"9"
"collegeName":"Kentucky"
"country":"USA"
"playerId":"126"
"dateOfBirth":"1993-03-11"
"affiliation":"Kentucky/USA"
"startNba":"2012"
"heightInMeters":"2.08"
"weightInKilograms":"114.8"
1: {
"firstName":"Deyonta"
"lastName":"Davis"
"teamId":"14"
"yearsPro":"3"
"collegeName":"Michigan State"
"country":"USA"
"playerId":"127"
"dateOfBirth":"1996-12-02"
"affiliation":"Michigan State/USA"
"startNba":"2016"
"heightInMeters":"2.11"
"weightInKilograms":"107.5"
}
I limited the results here, but it goes on and on, etc.
So, I am looking to do two things:
First, extract/filter the correct player using their first name and last name.
In said extraction, I still need the complete array information when it is matched.
So essentially, I want 'Deyonta Davis', but when found - I also need the rest of said player's information (years pro, college, country, etc.)
I already have a command set up to retrieve the first result of the nested data in this API via last name - where the command takes the last name you input and sends the first result. The precise problem is that the first result is likely not to be the guy you are looking for.
The goal is to include first & last name to avoid pulling the wrong player.
A snippet of how I currently call the information via last name:
// Calling API
const splitmsg = message.content.split(' ')
var lastnameurl = "https://api-nba-v1.p.rapidapi.com/players/lastName/" + splitmsg[1];
axios.get(lastnameurl, {
headers: {
"x-rapidapi-key": apikey,
"x-rapidapi-host": apihost
}
// Extracting Player Information (first result)
var playerfirstname = response.data.api.players[0].firstName;
var playerlastname = response.data.api.players[0].lastName;
var collegename = response.data.api.players[0].collegeName;
var countryname = response.data.api.players[0].country;
var playerDOB = response.data.api.players[0].dateOfBirth;
var yrspro = response.data.api.players[0].yearsPro;
var startednba = response.data.api.players[0].startNba;
Any help would be appreciated, thank you.
If I understand the question correctly the task is:
Retrieve first matching object from an array where properties firstName and lastName equal to desired values.
To achieve this you could use build in find function.
const player = array.find(el => {
return el.firstName === "Deyonta" && el.lastName === "Davis"
});
Keep in mind if there is no such object in array the player will be undefined.
I'm super newbie in coding and I need help to achieve this code.
I'm trying to get a random item (in pairs) from an array and then remove it from this array until user gets to the last item or 60 days have gone from using the service (cookie?)... I have build a script with the help of other questions here in stackoverflow and here is my results so far.
`<script>
var randomizer = document.getElementById("getImgBut");
var dog1 = '/app/wp-content/mediaApp/yo-creo-mi-realidad/01F.jpg';
var dog2 = '/app/wp-content/mediaApp/yo-creo-mi-realidad/01B.jpg';
var dogpics=[dog1,dog2];
var yourPics = [
dogpics,
[ '/app/wp-content/mediaApp/yo-creo-mi-realidad/02F.jpg', '/app/wp-content/mediaApp/yo-creo-mi-realidad/02B.jpg' ],
[ '/app/wp-content/mediaApp/yo-creo-mi-realidad/03F.jpg', '/app/wp-content/mediaApp/yo-creo-mi-realidad/03B.jpg' ],
[ '/app/wp-content/mediaApp/yo-creo-mi-realidad/04F.jpg', '/app/wp-content/mediaApp/yo-creo-mi-realidad/04B.jpg' ],
[ '/app/wp-content/mediaApp/yo-creo-mi-realidad/05F.jpg', '/app/wp-content/mediaApp/yo-creo-mi-realidad/05B.jpg' ],
[ '/app/wp-content/mediaApp/yo-creo-mi-realidad/06F.jpg', '/app/wp-content/mediaApp/yo-creo-mi-realidad/06B.jpg' ] //This array has 52 cards but I cutted it for example purposes
];
function get_random_number(array){
return Math.floor(Math.random() * array.length |0);
} // here is where I have tried to modify with other scripts like the one in this page https://stackoverflow.com/questions/38882487/select-random-item-from-array-remove-it-restart-once-array-is-empty with no success
randomizer.addEventListener("click", function() {
var rand_number = get_random_number(yourPics);
console.log(rand_number);
document.getElementById('img1').src = yourPics[rand_number][0];
document.getElementById('img2').src = yourPics[rand_number][1];
});
var card = document.querySelector('.card');
card.addEventListener( 'click', function() {
card.classList.toggle('is-flipped');
});
</script>`
Thank you for your help!
I don't fully understand what you mean by "remove in pairs", but I'll answer presuming you mean you wish to remove the image ending in 02F.jpg at the same time as removing the image ending in 02B.jpg, and then 03F.jpg at the same time as 03B.jpg.
The solution to this that I will propose is that we will structure your data a bit differently to begin with. That is, if those images, the "B image" and "F image" are linked, we could keep them in the same `javascript object. This would look like:
var yourPics = [
{
bImage: '/app/wp-content/mediaApp/yo-creo-mi-realidad/02F.jpg',
fImage: '/app/wp-content/mediaApp/yo-creo-mi-realidad/02B.jpg'
},
{
bImage: '/app/wp-content/mediaApp/yo-creo-mi-realidad/03F.jpg',
fImage: '/app/wp-content/mediaApp/yo-creo-mi-realidad/03B.jpg'
}...]
This would then be an array of objects, rather than strings. We can access the bImage property of an object with just
myObject = yourPics[0]
myObject.bImage
We could delete one of those objects those at random via splice.
myRandomlyRemovedObject = yourPics.splice(myIndexToDeleteFrom, 1) would remove 1 object from yourPics at position of myIndexToDeleteFrom, which you presumably would choose randomly. myRandomlyRemovedObject would be assigned to the one object we removed.
I think this object based approach is safer since you will know for a fact that you will removed both matching strings at the same time.
I have an array of objects. each object has a "day type"; morning, afternoon, evening. They come in random order each time I get the list due to async differences... But I need to display them in following order: morning, afternoon, evening.
If I use array.sort() they will come out in order: afternoon, evening, morning. because it sorts alphabetically right?
So... I need a compare function. but I cant figure out how to make it since all examples I have found only has two input. sort(a, b)......
day.shifts = randomOrder;
day.shifts.sort((a, b, c) => {
//some how compare all 3
}
I hope this is possible, and it is probably piece of cake.... Other wise I have thought of solutions like so
day.shifts = randomOrder;
const morning = [];
const afternoon = [];
const evening = [];
day.shifts.forEach(shift => {
if(shift.type === 'morning'){
morning.push(shift)
}
if(shift.type === 'afternoon'){
afternoone.push(shift)
}
if(shift.type === 'evening'){
evening.push(shift)
}
}
day.shifts = morning.concat(afternoon).concat(evening);
I would prefer a compare method if that is possible. Or at least something a bit more "pretty" than my split to separate arrays and the concatenate method...
the objects in the list looks like this:
{
type: 'morning',
name: 'some person',
id: 'person db index',
}
You can sort them like this:
const order = ["morning", "afternoon", "evening"];
day.shifts.sort((a, b) => order.indexOf(a.type) - order.indexOf(b.type));
That basically sorts the shifts after wich type comes first in the order array.
You could sort by type with an object for the order.
var types = { morning: 1, afternoon: 2, evening: 3 };
day.shifts.sort((a, b) => types[a.type] - types[b.type]);
I'm trying to learn JavaScript, and so I'm doing this project to practice. I'm trying to figure out how the objects and all that work. Basically what I want, is a list of people, as objects, with certain properties assigned to each. Then it to ask a bunch of questions until it guesses the person you're thinking of. I've searched around, but can't really find exactly how to do this. This is what I have so far:
function person(name,age,eyecolor,gender,eyeglasses)
{
this.name=name;
this.age=age;
this.eyecolor=eyecolor;
this.gender=gender;
this.eyeglasses=eyeglasses;
}
var Dad=new person("Dad",45,"blue","male",true);
var Mom=new person("Mom",48,"blue","female",false);
var Brother=new person("Brother",16,"blue","male",false);
var Sister=new person("Sister",15,"green","female",false);
function askQuestion (){
}
function begin(){
askQuestion();
}
Now what I want is a way that I can, in the askQuestion function, select a question from a list based on what we know so far about the person. And then recalculate who of the people it could be, and then pick another question to ask, until we know who it is. Hopefully I've made this clear. How would I do that?
This is a bit like the game "Guess Who?" no? Alright so this is what you do:
First you create a constructor for a person. You got this right.
function Person(name, age, eyecolor, gender, eyeglasses) {
this.name = name;
this.age = age;
this.eyecolor = eyecolor;
this.gender = gender;
this.eyeglasses = eyeglasses;
}
Then you create list of possible people. A list means an array.
var people = [
new Person("Dad", 45, "blue", "male", true),
new Person("Mom", 48, "blue", "female", false),
new Person("Brother", 16, "blue", "male", false),
new Person("Sister", 15, "green", "female", false)
];
Then you keep asking questions to guess who the person is. To keep asking means to use a loop. We'll keep looping until there's only one person left in the list (the person we're looking for):
while (people.length > 1) askQuestion();
Next we define the askQuestion function. First we need to select what question to ask. So we make a list of questions. Again this is an array. We'll also store which property to test and the result for true and false conditions.
var questions = [
["eyecolor", "blue", "green", "Does the person have blue eyes?"],
["gender", "male", "female", "Is the person a male?"],
["eyeglasses", true, false, "Does the person wear eyeglasses?"]
];
These three questions are all you need to know to determine who the person is. Next we record which question is currently being asked (0, 1 or 2).
var question_no = 0;
Finally we ask the questions to determine who the person is:
function askQuestion() {
var question = questions[question_no++];
var answer = confirm(question[3]) ? question[1] : question[2];
var predicate = question[0];
people = people.filter(function (person) {
return person[predicate] === answer;
});
}
Here we ask the user a question, determine which answer he chose and use that information to filter the people who match the given description. Finally we end up with one person:
alert("The person you're thinking about is " + people[0].name + ".");
See the working demo here: http://jsfiddle.net/9g6XU/
Here's how I would do it. It's shorter than Aadit's answer, and in my opinion, simpler and easier to understand.
Make a list of the people. Use an array literal:
var people = [Dad, Mom, Brother, Sister];
I like to structure my code, so I would put the questions in an object:
var questions = {
"Are they male or female?" : 'gender',
"What is their eye color?" : 'eyecolor',
"Do they wear glasses?" : 'eyeglasses'
};
This could be expanded with as many properties as you want.
Then:
for (question in questions) { //This is how you loop through an object
var property = questions[question]; //This gets the second part of the object property, e.g. 'gender'
var answer = prompt(question);
//filter is an array method that removes items from the array when the function returns false.
//Object properties can be referenced with square brackets rather than periods. This means that it can work when the property name (such as 'gender') is saved as a string.
people = people.filter(function(person) { return person[property] == answer });
if (people.length == 1) {
alert("The person you are thinking of is " + people[0].name);
break;
}
if (people.length == 0) {
alert("There are no more people in the list :(");
break;
}
}
And I, too, made you a fiddle.Here it is.
I have an array that stores the values:
var array = [['favorite color'],['black','red']]
to get black I would:
document.write(array[0][1][0]);
then if i append to the array another question [['favorite thing']['box','ball']]
If I wanted ball I would:
document.write.array[1][1][1];
I am having trouble understanding arrays. I want an array with one question and multiple answers then I want to loop through them and display everything. I can do the loop but I am unsure how to find things in nested arrays once I create them.
Use a combination of objects (which work like dictionaries) and arrays. For example:
var array = [
{'question' : 'favorite color', 'choices' : ['black','red'] },
{'question' : 'favorite thing', 'choices' : ['box','ball'] }
]
for( var i = 0; i < array.length; i++ ) {
var question = array[i]['question'];
var choices = array[i]['choices'];
// here you can display / write out the questions and choices
}
Bearing in mind, creating a class and using a constructor or init methods would probably be better to encapsulate the idea of questions and answers. But the above is the basic idea.
var array = [['favorite color'],['black','red','blue']];
document.writeln(array[1][1]);
document.write(array[1][2]);
Would print red then blue see it working live : http://jsfiddle.net/HJ872/
How?
array[0] => gets an *array* = ['favorite color']
=> array[0][0] gets this first element `favorite color`
array[1] => also gets this array = ['black','red','blue']
=> and then [1][1] will get 'red', [1][2] will get `blue`