Simple Plain Column Chart JavaScript Library – simpleBar.js

simpleBar.js is a minimal JavaScript charting library that takes an array of JS objects and converts them into a simple column chart using plain JavaScript/HTML/CSS.

How to use it:

1. Code the HTML for the column chart.

<figure id="bar-chart">
  <h1>My Chart</h1>
  <div class="row bars">
    <div class="y-axis one" id="yAxis">
    </div>
    <div class="x-axis" id="xAxis">
    </div>
  </div>
</figure>

2. Load the simpleBar.js JavaScript library in the document.

<script src="simpleBar.js"></script>

3. Override the default chart data as follows:

var chartData = [
  {
    quater: "Q1",
    revenue: 18450,
    expenses: 16500,
    get calProfit() {
      return this.revenue - this.expenses;
    }
  },
  {
    quater: "Q2",
    revenue: 3430,
    expenses: 3420,
    get calProfit() {
      return this.revenue - this.expenses;
    }
  },
  {
    quater: "Q3",
    revenue: 3225,
    expenses: 3100,
    get calProfit() {
      return this.revenue - this.expenses;
    }
  },
  {
    quater: "Q4",
    revenue: 3500,
    expenses: 3700,
    get calProfit() {
      return this.revenue - this.expenses;
    }
  }
];

4. The required CSS for the column chart. Copy and paste the following CSS snippets into your HTML document and done.

#bar-chart {
  margin: 0 auto;
  max-width: 900px;
  position: relative;
}
#bar-chart h1 {
  text-align: center;
  margin: 0;
  font-size: 1.5em;
  font-weight: 600;
}
#bar-chart .row {
  position: relative;
  line-height: 1.25em;
  margin-bottom: 2em;
  height: 320px;
}
#bar-chart .row .segment {
  -webkit-box-flex: 1;
  -ms-flex: 1 100%;
  flex: 1 100%;
  display: block;
  position: relative;
  -ms-flex-item-align: end;
  align-self: flex-end;
}
#bar-chart .row .segment:after {
  content: "";
  display: block;
  width: 100%;
  bottom: 0;
  position: absolute;
  height: 1px;
  background-color: #414245;
  z-index: -1;
}
#bar-chart .label {
  display: block;
  font-size: 0.7em;
  text-align: center;
}
/* X Axis */
#bar-chart .x-axis {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  padding: 0 2em 0 0.5em;
  height: 100%;
  margin-bottom: 3.5em;
}
#bar-chart .x-axis .year {
  -webkit-box-flex: 1;
  -ms-flex: 1;
  flex: 1;
  position: relative;
}
#bar-chart .x-axis .year .col {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  height: 100%;
  margin: 0 8%;
  position: relative;
}
#bar-chart .x-axis .year .col .bar {
  -webkit-box-flex: 1;
  -ms-flex: 1;
  flex: 1;
  background-color: #00aba9;
  -ms-flex-item-align: end;
  align-self: flex-end;
  position: relative;
  margin: 0;
  height: 0px;
  -webkit-transition: height, 1s ease;
  -o-transition: height, 1s ease;
  transition: height, 1s ease;
}
#bar-chart .x-axis .year .col .bar[style*="height"] {
  min-height: 2px;
}
#bar-chart .x-axis .year .col .bar.negative {
  -ms-flex-item-align: start;
  align-self: flex-start;
  top: 100%;
}
#bar-chart .x-axis .label {
  padding: 0.5em 0.25em 0;
  top: 328px; /* 320 + 8*/
  position: absolute;
  line-height: 1.25em;
  width: 100%;
}
#bar-chart .x-axis .label a {
  color: #fff;
  text-decoration: none;
  display: block;
}
#bar-chart .x-axis .label a .name {
  display: none;
}
#bar-chart .x-axis .year .col .bar .tooltip,
#bar-chart .x-axis .year .col .bar .tooltip:after {
  display: block;
  position: absolute;
  z-index: 2;
  left: 50%;
  -webkit-transform: translateX(-50%);
  -ms-transform: translateX(-50%);
  transform: translateX(-50%);
}
#bar-chart .x-axis .year .col .bar .tooltip {
  top: -2em;
  font-size: 0.75em;
  padding: 2px 5px;
}
/* Y Axis */
#bar-chart .y-axis {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  height: 100%;
  -webkit-box-orient: horizontal;
  -webkit-box-direction: normal;
  -ms-flex-direction: row;
  flex-direction: row;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  position: absolute;
  width: 100%;
  padding: 0 1.5em 0 0.25em;
}
#bar-chart .y-axis .label {
  margin: 0 auto -10px -2.5em;
  width: 2.5em;
  text-align: left;
  padding-right: 0;
  padding-left: 0.5em;
}