Can't understand error Expected property 'desc' to be ordered before property ...

[HiHoS]

I have JS with:

let SectObj = [
{fstSlide:27, lastSlide:28, totSlides:2, desc:"3. Aviation"}
];

It gives an error:

Expected property 'desc' to be ordered before property 'totSlides'.
{fstSlide:27, lastSlide:28, totSlides:2, desc:"3. Aviation"}

If I write as:

let SectObj = [
{desc:"3. Aviation", fstSlide:27, lastSlide:28, totSlides:2}
];

It does not give error. I don't understand what the problem
with the 1st iteration is?

[kaizhu256]

jslint is making a style-complaint that the properties are not sorted. the reasoning is to prevent chaotic/haphazard property listings for large dictionaries/configs/options. you can disable the style-warning with directive /*jslint unordered*/

// properties are unsorted
{
    fstSlide:27,
    lastSlide:28,
    totSlides:2,
    desc:"3. Aviation" // Expected property 'desc' to be ordered before property 'totSlides'
}

// properties sorted in ascii-order
{
    desc:"3. Aviation",
    fstSlide:27,
    lastSlide:28,
    totSlides:2
}