Gist to decode the Wordpress attachment ID's from a ACF Gallery custom field

ACFGallery-parser

var gallerycf = json.post.custom_fields.gallerij[0];
gallerycf = gallerycf.split('{');
gallerycf = gallerycf[1].split(';');

var items = [];
for(i=0; i<gallerycf.length; i++){
	if(i % 2 !== 0){
		items.push(gallerycf[i]);
	}
}

var items2 = [];
for(i=0;i<items.length;i++){
	items[i] = items[i].substring(5);
	items[i] = items[i].slice(0,-1);
	items[i] = parseInt(items[i], 10);
	items2.push(items[i]);
}

console.log(items2);