Retrieve the initial data point from the JSON

Question

Retrieve the initial data point from the JSON

My goal is to extract the initial value ("source") from the given JSON file

{
    "slides": [{
        "source": "images/Carousel-01.jpg",
        "title": "Slide 1 Title",
        "caption": "Slide 1 Description"
    }, {
        "source": "images/Carousel-02.jpg",
        "title": "Slide 2 Title",
        "caption": "Slide 2 Description"
    }]
}

I am attempting to retrieve the value using AngularJS with this code snippet

<div ng-repeat="img in slides">
   <img ng-src="{{img.slides[0].source}}" />
</div>

However, it consistently displays an empty field and I am unsure about how to specifically get the first or last value. I'm uncertain if this is achievable as I strive to build a carousel.

javascript json angularjs

Answer 1

Answer №1

If you're looking to display just the initial image, there's no requirement for ng-repeat

You can achieve this with the following code:

<img ng-src="{{slides[0].source}}" />

Answer 2

If you're looking to display just the initial image, there's no requirement for ng-repeat

You can achieve this with the following code:

<img ng-src="{{slides[0].source}}" />

Answer 3

Answer №2

The ng-repeat directive allows for iterating through each object within the slides array, which is denoted by curly braces { }.

When you use img.slides[0].source:

img represents the current slide object being accessed.
This prompts the loop to search for a nested array named slides within the current slide object (referred to as img).
The instruction requests the first item in that array [0]
Finally, the code seeks out the source property within that particular item.

However, steps 2 and 3 are incorrect for your dataset. There is no array of slides within each individual slide.

All you really need is {{img.source}}

Answer 4

The ng-repeat directive allows for iterating through each object within the slides array, which is denoted by curly braces { }.

When you use img.slides[0].source:

img represents the current slide object being accessed.
This prompts the loop to search for a nested array named slides within the current slide object (referred to as img).
The instruction requests the first item in that array [0]
Finally, the code seeks out the source property within that particular item.

However, steps 2 and 3 are incorrect for your dataset. There is no array of slides within each individual slide.

All you really need is {{img.source}}

Retrieve the initial data point from the JSON

Answer №1

Answer №2

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