filtering uom json

by GregWoods

JavaScript

//cut down list of uom data
var uomData = [
    {"Abbrev":"MAS","Title":"Mass","Uoms":[
        {"Id":1,"Name":"Kilogram"},
        {"Id":2,"Name":"Gram"},
        {"Id":3,"Name":"Microgram"},
        {"Id":4,"Name":"Milligram"},
        {"Id":5,"Name":"Metric Ton"},
        {"Id":6,"Name":"Pound"},
        {"Id":7,"Name":"Ton (US, Short)"},
        {"Id":8,"Name":"Ounce"},
        {"Id":232,"Name":"Ton (UK, Long)"}
    ]},
    {"Abbrev":"LEN","Title":"Length","Uoms":[
        {"Id":9,"Name":"Kilometer"},
        {"Id":10,"Name":"Meter"},
        {"Id":18,"Name":"Fathom"}
    ]}
];

var excludedUomIds = [1,2,4];
//filter will return an filtered list of items. In this case only one item, but it is still an array,
//  therefore we need to get the first element of it [0]

var massUomCategory = uomData.filter(function(element, elIndex) {
    return element.Abbrev == "MAS";
})[0];

//now filter the list of uoms based on excludedUoms
var uoms = massUomCategory.Uoms;

console.log("====excluded====");

var excludedUoms = uoms.filter(function(el, idx) {
    return (excludedUomIds.indexOf(el.Id) > -1);
});

excludedUoms.forEach(function(el) {
    console.log(el.Name);
})

console.log("====included====");

var includedUoms = uoms.filter(function(el, idx) {
    return (excludedUomIds.indexOf(el.Id) == -1);
});

includedUoms.forEach(function(el) {
    console.log(el.Name);
})