diff --git a/src/components/DagComponent.js b/src/components/DagComponent.js
index 6d38945e..541f6689 100644
--- a/src/components/DagComponent.js
+++ b/src/components/DagComponent.js
@@ -228,18 +228,10 @@ class DagComponent extends React.Component {
       .append('g')
       .attr('class', 'link')
       .append('line')
-      .attr('x1', function(d) {
-        return d.source.x;
-      })
-      .attr('y1', function(d) {
-        return d.source.y;
-      })
-      .attr('x2', function(d) {
-        return d.target.x;
-      })
-      .attr('y2', function(d) {
-        return d.target.y;
-      });
+      .attr('x1', d => d.source.x)
+      .attr('y1', d => d.source.y)
+      .attr('x2', d => d.target.x)
+      .attr('y2', d => d.target.y);
 
     this.link = this.gLinks.selectAll('line');
   }
@@ -252,9 +244,7 @@ class DagComponent extends React.Component {
       .selectAll()
       .data(txs)
       .enter()
-      .filter(function(d) {
-        return !d.isBlock;
-      })
+      .filter(d => !d.isBlock)
       .append('g')
       .attr('class', 'tx');
 
@@ -294,9 +284,7 @@ class DagComponent extends React.Component {
       .attr('y', d => {
         return d.y;
       })
-      .text(function(d) {
-        return d.id.substring(0, 4);
-      });
+      .text(d => d.id.substring(0, 4));
 
     this.tx = this.gTxs.selectAll('circle');
   }
@@ -309,9 +297,7 @@ class DagComponent extends React.Component {
       .selectAll()
       .data(blocks)
       .enter()
-      .filter(function(d) {
-        return d.isBlock;
-      })
+      .filter(d => d.isBlock)
       .append('g')
       .attr('class', 'block');
 
@@ -344,9 +330,7 @@ class DagComponent extends React.Component {
 
     // Add text to show block info
     block
-      .filter(function(d) {
-        return d.isBlock;
-      })
+      .filter(d => d.isBlock)
       .append('text')
       .append('tspan')
       .attr('class', 'block-text')
@@ -358,9 +342,7 @@ class DagComponent extends React.Component {
       .attr('y', d => {
         return d.y + this.blockHeight / 2;
       })
-      .text(function(d) {
-        return d.id.substring(0, 4);
-      });
+      .text(d => d.id.substring(0, 4));
 
     this.block = this.gBlocks.selectAll('rect');
   }
@@ -435,7 +417,7 @@ class DagComponent extends React.Component {
       /** Data from the tx being hovered */
       const d = mouseEvent.currentTarget.__data__;
       if (this.tx) {
-        this.tx.style('stroke-opacity', function(o) {
+        this.tx.style('stroke-opacity', function changeStrokeOpacity(o) {
           const thisOpacity = d.links.indexOf(o.id) > -1 || d.id === o.id ? 1 : opacity;
           this.setAttribute('fill-opacity', thisOpacity);
           return thisOpacity;
@@ -443,7 +425,7 @@ class DagComponent extends React.Component {
       }
 
       if (this.block) {
-        this.block.style('stroke-opacity', function(o) {
+        this.block.style('stroke-opacity', function changeStrokeOpacity(o) {
           const thisOpacity = d.links.indexOf(o.id) > -1 || d.id === o.id ? 1 : opacity;
           this.setAttribute('fill-opacity', thisOpacity);
           return thisOpacity;