sort array object
Sorting an array of objects can be done in a variety of ways. For example, if you want to sort the array in ascending order based on one of the objects' properties, you can use the sort()
method of the array. The basic syntax for this is:
array.sort(function(a,b) {
return a.property - b.property;
});
In the above code, a
and b
are two elements in the array, and property
is the property of the object which you are trying to sort by. This function returns a number less than 0 if a
is less than b
, a number greater than 0 if a
is greater than b
, and 0 if they are equal.
If you want to sort the array in descending order, you can use the same function, but with the parameters reversed:
array.sort(function(a,b) {
return b.property - a.property;
});
If you want to sort the array based on multiple properties, you can use the sort()
method with a combination of if/else
statements. For example, if you want to sort the array by two properties, property1
and property2
, you can use:
array.sort(function(a,b) {
if (a.property1 === b.property1) {
return a.property2 - b.property2;
} else {
return a.property1 - b.property1;
}
});
The above code first checks if the two elements' property1
values are equal. If they are, it compares the property2
values. If they are not, it compares the property1
values.
You can also use the sort()
method with the Array.from()
method to convert a NodeList or other array-like object into an array. For example:
let array = Array.from(myNodeList);
array.sort(function(a,b) {
return a.property - b.property;
});
The Array.from()
method creates a new array from an array-like object, such as a NodeList. The sort()
method can then be used to sort the resulting array.