Creates a set of changes which need to be applied to the input in order to transform
it into the output. This function can be used with strings or arrays.
const input = Array.from( 'abc' );
const output = Array.from( 'xaby' );
const changes = diffToChanges( diff( input, output ), output );
changes.forEach( change => {
if ( change.type == 'insert' ) {
input.splice( change.index, 0, ...change.values );
} else if ( change.type == 'delete' ) {
input.splice( change.index, change.howMany );
}
} );
input.join( '' ) == output.join( '' ); // -> true
Type parameters
T
The type of output array element.
Parameters
diff
:
readonly Array<DiffResult>
Result of diff
.
output
:
ArrayLike<T>
The string or array which was passed as diff's output.
Returns
Array<Change<T>>
Set of changes (insert or delete) which need to be applied to the input
in order to transform it into the output.