0.2.0 • Published 5 years ago
diff-ranges v0.2.0
diff-ranges
JavaScript function that return index ranges of new objects in an array of objects and also return newly added objects.
How to use?
Import
const { getDiffIndexRanges } = require('./diff-ranges');
// OR
import { getDiffIndexRanges } from './diff-ranges';
Define your arrays (Example)
const a = [
{
name: 'val1',
age: 20
},
{
name: 'val2',
age: 21
}
];
const b = [
{
name: 'val1',
age: 20
},
{
name: 'val2',
age: 19
},
{
name: 'val3',
age: 21
},
{
name: 'val4',
age: 20
}
];
Use it
const result = getDiffIndexRanges(a, b, (ai, bi) => ai.name === bi.name);
const indicesRanges = result.rangeIndices;
// [{ startRow: 2, endRow: 4 }]
const newElements = result.newElements;
/*
[{
name: 'val3',
age: 21
},
{
name: 'val4',
age: 20
}]
*/
API
getDiffIndexRanges(oldArray, newArray, comparatorFunction);