Get the first JSON result [closed] - javascript

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I'm trying to grab the url for featured_image. How do I go about this?
result["featured_image"] ...
featured_image: [
"http://192.168.23.23/wp-content/uploads/2016/03/formal_table.jpg",
984,
500,
false
]

Since featured_image is an array you could use the following,
result["featured_image"][0]
to access the URL, that is in the zeroth index of that array.

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How to use foreach method in javascript [closed]

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what should I write inside the function?
`array.forEach(function(item){
})`
try to insert data to array

how can I access the second _id from the mongoDb document? [closed]

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How can I access the second ID from here?
Try this:
db.collection.find({job: {_id: theIdYouWantToAccess }})
There's more info in the MongoDB documentation, depending on what you want to do.
https://docs.mongodb.com/manual/reference/method/db.collection.find/#query-embedded-documents

How to count specific items in array [closed]

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I've got this array in my jquery Script :
I want to count all items inside my array called div.item.bloc-membre
Right now I have this code that returns me 75
console.log($(response).length);
Thanks for your help !
Using filter
console.log($(response).filter("div.item.bloc-membre").length);

Making sure a number is part of a set (javascript) [closed]

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So lets say I have a set of numbers 1 through 6. I want to check that a variable is part of this set.
How do in Javascript?
var s = new Set([1,2,3,4,5,6]);
s.has(1); // returns true
s.has(100); // returns false

What is result of follow code in JavaScript [closed]

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What is result of follow code :
[] == [] in JavaScript? I had it on test and couldn't find solution.
The result is false because arrays are objects in javascript, so they point to different places in memory, and are so not seen as the same thing.

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