If text is an empty string, use it.

afshin · afshin · commit 39c409034db2 · 2016-05-03T22:03:58.000+01:00
diff --git a/jupyter-js-widgets/src/utils.js b/jupyter-js-widgets/src/utils.js
@@ -153,7 +153,7 @@ function reject(message, log) {
  * text: optional string
  */
 function typeset(element, text) {
-    if (text) {
+    if (text !== void 0) {
         element.textContent = text;
     }
     if (window.MathJax) {

Original file line number	Diff line number	Diff line change
`@@ -153,7 +153,7 @@ function reject(message, log) {`
`153`	`153`	`* text: optional string`
`154`	`154`	`*/`
`155`	`155`	`function typeset(element, text) {`
`156`		`- if (text) {`
	`156`	`+ if (text !== void 0) {`
`157`	`157`	`element.textContent = text;`
`158`	`158`	`}`
`159`	`159`	`if (window.MathJax) {`