Package Exports

@writetome51/get-sorted-by-property

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Readme

getSortedByProperty(
property: string,
objects: object[]
): object[]

Returns new array of objects, sorted by property in each.
Based on the data type of objects[0][property], it decides how to sort all objects.
That type must be either number, string, or boolean. Sorting is done either numerically or
alphabetically (booleans are treated as strings).
The original objects array is not modified.

Note: property is a string that can include dot notation ( i.e.,
'property.subproperty.subsubproperty' ).

Note: even if property is an array index, here you need to use dot-notation
and not square braces, i.e., '1.0' // instead of [1][0]

Examples

let objects = [
    {user: {email: 'zzz100@gmail.com', age: 55}},
    {user: {email: 'xyz100@gmail.com', age: 83}},
    {user: {email: 'xyz200@gmail.com', age: 19}},
    {user: {email: 'blah123@yahoo.com', age: 28}}
];
getSortedByProperty('user.email', objects);
/**************
Returns:
[
    { user: { email: 'blah123@yahoo.com', age: 28 } },
    { user: { email: 'xyz100@gmail.com', age: 83 } },
    { user: { email: 'xyz200@gmail.com', age: 19 } },
    { user: { email: 'zzz100@gmail.com', age: 55 } } 
]
**************/

getSortedByProperty('user.age', objects);
/**************
Returns:
[
    { user: { email: 'xyz200@gmail.com', age: 19 } },
    { user: { email: 'blah123@yahoo.com', age: 28 } },
    { user: { email: 'zzz100@gmail.com', age: 55 } },
    { user: { email: 'xyz100@gmail.com', age: 83 } }
]
**************/

// If the property is undefined in the first object, this triggers error:
objects = [
    { email: 'xyz200@gmail.com'},
    { email: 'blah123@yahoo.com', age: 28 },
    { email: 'zzz100@gmail.com', age: 55 } 
];
getSortedByProperty('age', objects);
// Console: "Error: The first object in the objects array either doesn't have the specified
//      property, or that property doesn't have a value."


// The following is something you need to be careful with.
// We're going to sort by 'user.age', but the value in first object will be a string,
// meaning sorting will be alphabetical:

objects = [
    {user: {email: 'blah123@yahoo.com', age: '10'}}, // string means sorting will be alphabetical.
    {user: {email: 'zzz100@gmail.com', age: 55}},
    {user: {email: 'xxx100@yahoo.com', age: 100}},
    {user: {email: 'xyz100@gmail.com', age: 20}},
    {user: {email: 'xyz200@gmail.com', age: 5}}
];
getSortedByProperty('user.age', objects);
/**************
Returns:
[
    { user: { email: 'blah123@yahoo.com', age: '10' } },
    { user: { email: 'xxx100@yahoo.com', age: 100 } },
    { user: { email: 'xyz100@gmail.com', age: 20 } },
    { user: { email: 'xyz200@gmail.com', age: 5 } },
    { user: { email: 'zzz100@gmail.com', age: 55 } }
]
**************/


// The following scenario will cause an error.
// Again we're going to sort by 'user.age':

objects = [
    {user: {email: 'blah123@yahoo.com', age: 10}}, // number means sorting will be numeric...
    {user: {email: 'zzz100@gmail.com', age: '55'}}, // ...but since the numbers in the following items
    {user: {email: 'xxx100@yahoo.com', age: '100'}}, // are actually strings, that will trigger error.
    {user: {email: 'xyz100@gmail.com', age: '20'}}
];
getSortedByProperty('user.age', objects);
// Console: "Error: Input must be a finite number of type 'number' "

Installation

npm i @writetome51/get-sorted-by-property

Loading

import {getSortedByProperty} from '@writetome51/get-sorted-by-property';

@writetome51/get-sorted-by-property