Sort array on key value
Array.prototype.sortOn = function(key){ this.sort(function(a, b){ if(a[key] < b[key]){ return -1; }else if(a[key] > b[key]){ return 1; } return 0; });}var arr = [{name:'bob', artist:'rudy'},{name:'johhny', artist:'drusko'},{name:'tiff', artist:'needell'},{name:'top', artist:'gear'}];arr.sortOn("name");arr.sortOn("artist");
[edit 2020/08/14] This was rather an old answer and not very good as well, so simplified and revised.
Create a function that returns the sorting lambda (the Array.prototype.sort callback that does the actual sorting). That function can receive the key name, the kind of sorting (string (case sensitive or not) or numeric) and the sorting order (ascending/descending). The lambda uses the parameter values (closure) to determine how to sort.
const log = (...strs) => document.querySelector("pre").textContent += `\n${strs.join("\n")}`;const showSortedValues = (arr, key) => ` => ${arr.reduce((acc, val) => ([...acc, val[key]]), [])}`; // the actual sort lamda factory functionconst sortOnKey = (key, string, desc) => { const caseInsensitive = string && string === "CI"; return (a, b) => { a = caseInsensitive ? a[key].toLowerCase() : a[key]; b = caseInsensitive ? b[key].toLowerCase() : b[key]; if (string) { return desc ? b.localeCompare(a) : a.localeCompare(b); } return desc ? b - a : a - b; }};// a few examplesconst onNameStringAscendingCaseSensitive = getTestArray().sort( sortOnKey("name", true) );const onNameStringAscendingCaseInsensitive = getTestArray().sort( sortOnKey("name", "CI", true) );const onValueNumericDescending = getTestArray().sort( sortOnKey("value", false, true) );// exampleslog(`*key = name, string ascending case sensitive`, showSortedValues(onNameStringAscendingCaseSensitive, "name"));log(`\n*key = name, string descending case insensitive`, showSortedValues(onNameStringAscendingCaseInsensitive, "name"));log(`\n*key = value, numeric desc`, showSortedValues(onValueNumericDescending, "value"));function getTestArray() { return [{ name: 'Bob', artist: 'Rudy', value: 23, }, { name: 'John', artist: 'Drusko', value: 123, }, { name: 'Tiff', artist: 'Needell', value: 1123, }, { name: 'Top', artist: 'Gear', value: 11123, }, { name: 'john', artist: 'Johanson', value: 12, }, ];}<pre></pre>
function keysrt(key) { return function(a,b){ if (a[key] > b[key]) return 1; if (a[key] < b[key]) return -1; return 0; }}someArrayOfObjects.sort(keysrt('text'));