Remove selected feature Openlayers 3

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I'm using openlayers 3 to create web application that allow to user to draw LineString features in the map. this is the code:

var raster = new ol.layer.Tile({ source: new ol.source.MapQuest({ layer: 'sat' }) }); var source = new ol.source.Vector(); var vector = new ol.layer.Vector({ name: 'my_vectorlayer', source: source, style: new ol.style.Style({ stroke: new ol.style.Stroke({ color: '#ffcc33', width: 5 }) }) }); var map = new ol.Map({ layers: [raster, vector], target: document.getElementById('map'), view: new ol.View2D({ center: [-11000000, 4600000], zoom: 4 }) }); var draw; function addInteraction() { map.removeInteraction(singleClick); draw = new ol.interaction.Draw({ source: source, type: ("LineString") }); map.addInteraction(draw); } by the previous code i can drow lines in to the map. the drawn lines will be added to vector layer. I wont when the user select one of the line that he draw can remove them. this is the code of selecting the feature:

var singleClick = new ol.interaction.Select(); function addSelect() { map.removeInteraction(draw); map.addInteraction(singleClick); } and it's work very will,

I just want the user to be able to remove the selected LineString...



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