diff --git a/.eslintignore b/.eslintignore
new file mode 100644
index 0000000..5db3e80
--- /dev/null
+++ b/.eslintignore
@@ -0,0 +1,9 @@
+# possibly minified output
+js
+out
+
+# libraries
+jssrc/lib
+
+# php generated file
+jssrc/lang.js
diff --git a/jssrc/term_input.js b/jssrc/term_input.js
index 31141ce..ea40585 100644
--- a/jssrc/term_input.js
+++ b/jssrc/term_input.js
@@ -228,7 +228,7 @@ window.Input = (function () {
     // Mouse events
     onMouseMove: function (x, y) {
       if (!opts.mt_move) return
-      const b = mb1 ? 1 : mb2 ? 2 : mb3 ? 3 : 0;
+      const b = mb1 ? 1 : mb2 ? 2 : mb3 ? 3 : 0
       const m = packModifiersForMouse()
       Conn.send('m' + encode2B(y) + encode2B(x) + encode2B(b) + encode2B(m))
     },
diff --git a/jssrc/term_screen.js b/jssrc/term_screen.js
index e1df62f..689be1c 100644
--- a/jssrc/term_screen.js
+++ b/jssrc/term_screen.js
@@ -47,26 +47,22 @@ const themes = [
 // should not be used to look up 0-15 (will return transparent)
 const colorTable256 = new Array(16).fill('rgba(0, 0, 0, 0)')
 
-{
-  // fill color table
-
-  // colors 16-231 are a 6x6x6 color cube
-  for (let red = 0; red < 6; red++) {
-    for (let green = 0; green < 6; green++) {
-      for (let blue = 0; blue < 6; blue++) {
-        let redValue = red * 40 + (red ? 55 : 0)
-        let greenValue = green * 40 + (green ? 55 : 0)
-        let blueValue = blue * 40 + (blue ? 55 : 0)
-        colorTable256.push(`rgb(${redValue}, ${greenValue}, ${blueValue})`)
-      }
+// fill color table
+// colors 16-231 are a 6x6x6 color cube
+for (let red = 0; red < 6; red++) {
+  for (let green = 0; green < 6; green++) {
+    for (let blue = 0; blue < 6; blue++) {
+      let redValue = red * 40 + (red ? 55 : 0)
+      let greenValue = green * 40 + (green ? 55 : 0)
+      let blueValue = blue * 40 + (blue ? 55 : 0)
+      colorTable256.push(`rgb(${redValue}, ${greenValue}, ${blueValue})`)
     }
   }
-
-  // colors 232-255 are a grayscale ramp, sans black and white
-  for (let gray = 0; gray < 24; gray++) {
-    let value = gray * 10 + 8
-    colorTable256.push(`rgb(${value}, ${value}, ${value})`)
-  }
+}
+// colors 232-255 are a grayscale ramp, sans black and white
+for (let gray = 0; gray < 24; gray++) {
+  let value = gray * 10 + 8
+  colorTable256.push(`rgb(${value}, ${value}, ${value})`)
 }
 
 class TermScreen {
diff --git a/jssrc/utils.js b/jssrc/utils.js
index a0c055b..aa09f9e 100755
--- a/jssrc/utils.js
+++ b/jssrc/utils.js
@@ -48,7 +48,7 @@ function extend (defaults, options) {
 
 /** Escape string for use as literal in RegExp */
 function rgxe (str) {
-  return str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, '\\$&')
+  return str.replace(/[-[\]/{}()*+?.\\^$|]/g, '\\$&')
 }
 
 /** Format number to N decimal places, output as string */