Merge pull request #1174 from SylvainCorlay/more-ie-fixes

IE does not support string templating

Author: SylvainCorlay

jupyter-js-widgets/src/widget_controller.ts

@@ -58,7 +58,7 @@ class ControllerButtonView extends DOMWidgetView {
     }
 
     update() {
-        this.bar.style.height = `${100 * this.model.get('value')}%`;
+        this.bar.style.height = (100 * this.model.get('value')) + '%';
     }
 
     support: HTMLDivElement;
@@ -116,7 +116,7 @@ class ControllerAxisView extends DOMWidgetView {
     }
 
     update() {
-        this.bullet.style.top = `${50 * (this.model.get('value') + 1)}%`
+        this.bullet.style.top = (50 * (this.model.get('value') + 1)) + '%';
     }
 
     support: HTMLDivElement;

jupyter-js-widgets/src/widget_core.ts

@@ -10,7 +10,7 @@ import {
 
 import * as _ from 'underscore';
 
-var semver_range = `^${require('../package.json').version}`
+var semver_range = '^' + require('../package.json').version;
 
 export
 class CoreWidgetModel extends WidgetModel {

jupyter-js-widgets/src/widget_style.ts

@@ -51,7 +51,7 @@ class StyleView extends WidgetView {
         this._traitNames.push(trait);
 
         // Listen to changes, and set the value on change.
-        this.listenTo(this.model, `change:${trait}`, (model, value) => {
+        this.listenTo(this.model, 'change:' + trait, (model, value) => {
             this.handleChange(trait, value);
         });