I am using google histogram chart in my angular application, But i am unable to remove the space between the bars.

I am using google histogram chart in my angular application, But i am unable to remove the space between the bars.

Set the bar.groupWidth to 100%. Following image is from the documentation. You can either specify the width using percentage or pixels.
bar: {
groupWidth: '100%'
}
chart.draw(data, google.charts.Bar.convertOptions(options));