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utils/difftochanges

@ckeditor/ckeditor5-utils/src/difftochanges

module

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Functions

  • diffToChanges( diff, output ) → Array.<Object>

    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.

    See source
    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

    Parameters

    diff : Array.<('equal' | 'insert' | 'delete')>

    Result of diff.

    output : String | Array

    The string or array which was passed as diff's output.

    Returns

    Array.<Object>

    Set of changes (insert or delete) which need to be applied to the input in order to transform it into the output.