JS Array Classificação
numArray.sort((a, b) => a - b); // For ascending sort
numArray.sort((a, b) => b - a); // For descending sort
Worried Wildebeest
numArray.sort((a, b) => a - b); // For ascending sort
numArray.sort((a, b) => b - a); // For descending sort
var items = [
{ name: 'Edward', value: 21 },
{ name: 'Sharpe', value: 37 },
{ name: 'And', value: 45 },
{ name: 'The', value: -12 },
{ name: 'Magnetic', value: 13 },
{ name: 'Zeros', value: 37 }
];
// sort by value
items.sort(function (a, b) {
return a.value - b.value;
});
// sort by name
items.sort(function(a, b) {
var nameA = a.name.toUpperCase(); // ignore upper and lowercase
var nameB = b.name.toUpperCase(); // ignore upper and lowercase
if (nameA < nameB) {
return -1;
}
if (nameA > nameB) {
return 1;
}
// names must be equal
return 0;
});var names = ["Peter", "Emma", "Jack", "Mia", "Eric"];
names.sort(); // ["Emma", "Eric", "Jack", "Mia", "Peter"]
var objs = [
{name: "Peter", age: 35},
{name: "Emma", age: 21},
{name: "Jack", age: 53}
];
objs.sort(function(a, b) {
return a.age - b.age;
}); // Sort by age (lowest first)homes.sort(function(a, b) {
return parseFloat(a.price) - parseFloat(b.price);
});homes.sort((a, b) => parseFloat(a.price) - parseFloat(b.price));let arr = [1,2,3,3,4]
arr.sort() => sorts in ascending order from right to left
// You can sort in custom orders by defining a custom comparison function
// ex:
arr.sort(function compareNumbers(firstNumber, secondNumber){
/*
if a negative number is returned, firstNumber will be the first number in the output
if a positive number is returned, secondNumber will be the first number in the output
if a 0 is returned, it will default to returning them in the position they're already in
*/
// ascending order
// return firstNumber - secondNumber
// descending order
//return secondNumber - firstNumber
// Always want 3's to come first:
/*
if firstNumber === 3{
return -1
}
if secondNumber === 3{
return 1
}
return secondNumber - firstNumber
*/
})