Minor simplifications.

Removes a few extraneous parentheses that aren't needed due to operator
precedence.

src/core/format.js

@@ -38,7 +38,7 @@ d3.format = function(specifier) {
     if (integer && (value % 1)) return "";
 
     // Convert negative to positive, and record the sign prefix.
-    var negative = (value < 0) && (value = -value) ? "-" : sign;
+    var negative = value < 0 && (value = -value) ? "-" : sign;
 
     // Apply the scale, computing it from the value's exponent for si format.
     if (scale < 0) {

src/core/interpolate.js

@@ -254,7 +254,7 @@ function d3_interpolateByName(name) {
 
 d3.interpolators = [
   d3.interpolateObject,
-  function(a, b) { return (b instanceof Array) && d3.interpolateArray(a, b); },
+  function(a, b) { return b instanceof Array && d3.interpolateArray(a, b); },
   function(a, b) { return (typeof a === "string" || typeof b === "string") && d3.interpolateString(a + "", b + ""); },
   function(a, b) { return (typeof b === "string" ? d3_rgb_names.has(b) || /^(#|rgb\(|hsl\()/.test(b) : b instanceof d3_Rgb || b instanceof d3_Hsl) && d3.interpolateRgb(a, b); },
   function(a, b) { return !isNaN(a = +a) && !isNaN(b = +b) && d3.interpolateNumber(a, b); }

src/core/mouse.js

@@ -9,7 +9,7 @@ function d3_mousePoint(container, e) {
   var svg = container.ownerSVGElement || container;
   if (svg.createSVGPoint) {
     var point = svg.createSVGPoint();
-    if ((d3_mouse_bug44083 < 0) && (window.scrollX || window.scrollY)) {
+    if (d3_mouse_bug44083 < 0 && (window.scrollX || window.scrollY)) {
       svg = d3.select(document.body)
         .append("svg")
           .style("position", "absolute")

src/dsv/dsv.js

@@ -70,7 +70,7 @@ function d3_dsv(delimiter, mimeType) {
 
     while ((t = token()) !== EOF) {
       var a = [];
-      while ((t !== EOL) && (t !== EOF)) {
+      while (t !== EOL && t !== EOF) {
         a.push(t);
         t = token();
       }

src/layout/histogram.js

@@ -27,7 +27,7 @@ d3.layout.histogram = function() {
     if (m > 0) {
       i = -1; while(++i < n) {
         x = values[i];
-        if ((x >= range[0]) && (x <= range[1])) {
+        if (x >= range[0] && x <= range[1]) {
           bin = bins[d3.bisect(thresholds, x, 1, m) - 1];
           bin.y += k;
           bin.push(data[i]);