Chartjs-Add value to Line chart.js

If you use the latest version of chart.js there is a new update allow you to show a tooltip with value/title. http://www.chartjs.org/docs/

There is several options to custom the tooltip on mouseover

// Boolean - Determines whether to draw tooltips on the canvas or not
showTooltips: true,

// Array - Array of string names to attach tooltip events
tooltipEvents: ["mousemove", "touchstart", "touchmove"],

// String - Tooltip background colour
tooltipFillColor: "rgba(0,0,0,0.8)",

// String - Tooltip label font declaration for the scale label
tooltipFontFamily: "'Helvetica Neue', 'Helvetica', 'Arial', sans-serif",

// Number - Tooltip label font size in pixels
tooltipFontSize: 14,

// String - Tooltip font weight style
tooltipFontStyle: "normal",

// String - Tooltip label font colour
tooltipFontColor: "#fff",

// String - Tooltip title font declaration for the scale label
tooltipTitleFontFamily: "'Helvetica Neue', 'Helvetica', 'Arial', sans-serif",

// Number - Tooltip title font size in pixels
tooltipTitleFontSize: 14,

// String - Tooltip title font weight style
tooltipTitleFontStyle: "bold",

// String - Tooltip title font colour
tooltipTitleFontColor: "#fff",

// Number - pixel width of padding around tooltip text
tooltipYPadding: 6,

// Number - pixel width of padding around tooltip text
tooltipXPadding: 6,

// Number - Size of the caret on the tooltip
tooltipCaretSize: 8,

// Number - Pixel radius of the tooltip border
tooltipCornerRadius: 6,

// Number - Pixel offset from point x to tooltip edge
tooltipXOffset: 10,

// String - Template string for single tooltips
tooltipTemplate: "<%if (label){%><%=label%>: <%}%><%= value %>",