init some vars (fixes a few NaNs and undefineds)

leeoniya · Oct 17, 2019 · 9d71ac9 · 9d71ac9
1 parent 1c29ef5
commit 9d71ac9
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Showing 5 changed files with 30 additions and 10 deletions.
diff --git a/dist/uPlot.cjs.js b/dist/uPlot.cjs.js
@@ -182,6 +182,8 @@ var max = M.max;
 var pow = M.pow;
 var log10 = M.log10;
 
+var inf = Infinity;
+
 /*
 export function incrRound() {
 	return round(num/incr)*incr;
@@ -635,8 +637,8 @@ function uPlot(opts, data) {
 
 			if (!(key in scales)) {
 				scales[key] = {
-					min:  Infinity,
-					max: -Infinity,
+					min:  inf,
+					max: -inf,
 				};
 			}
 
@@ -700,7 +702,11 @@ function uPlot(opts, data) {
 
 		ctx.beginPath();
 
-		var prevX, minY, maxY, prevY, x, y, halfStroke = width/2;
+		var minY = inf,
+			maxY = -inf,
+			halfStroke = width/2,
+			prevX = halfStroke,
+			prevY, x, y;
 
 		for (var i = i0; i <= i1; i++) {
 			x = getXPos(xdata[i], scaleX, can[WIDTH]) + halfStroke;

diff --git a/dist/uPlot.iife.js b/dist/uPlot.iife.js
@@ -183,6 +183,8 @@ var uPlot = (function () {
 	var pow = M.pow;
 	var log10 = M.log10;
 
+	var inf = Infinity;
+
 	/*
 	export function incrRound() {
 		return round(num/incr)*incr;
@@ -636,8 +638,8 @@ var uPlot = (function () {
 
 				if (!(key in scales)) {
 					scales[key] = {
-						min:  Infinity,
-						max: -Infinity,
+						min:  inf,
+						max: -inf,
 					};
 				}
 
@@ -701,7 +703,11 @@ var uPlot = (function () {
 
 			ctx.beginPath();
 
-			var prevX, minY, maxY, prevY, x, y, halfStroke = width/2;
+			var minY = inf,
+				maxY = -inf,
+				halfStroke = width/2,
+				prevX = halfStroke,
+				prevY, x, y;
 
 			for (var i = i0; i <= i1; i++) {
 				x = getXPos(xdata[i], scaleX, can[WIDTH]) + halfStroke;

diff --git a/dist/uPlot.iife.min.js b/dist/uPlot.iife.min.js
diff --git a/src/uPlot.js b/src/uPlot.js
@@ -11,6 +11,8 @@ import {
 } from './fmtDate';
 
 import {
+	inf,
+
 	abs,
 	floor,
 	round,
@@ -291,8 +293,8 @@ export default function uPlot(opts, data) {
 
 			if (!(key in scales)) {
 				scales[key] = {
-					min:  Infinity,
-					max: -Infinity,
+					min:  inf,
+					max: -inf,
 				};
 			}
 
@@ -356,7 +358,11 @@ export default function uPlot(opts, data) {
 
 		ctx.beginPath();
 
-		let prevX, minY, maxY, prevY, x, y, halfStroke = width/2;
+		let minY = inf,
+			maxY = -inf,
+			halfStroke = width/2,
+			prevX = halfStroke,
+			prevY, x, y;
 
 		for (let i = i0; i <= i1; i++) {
 			x = getXPos(xdata[i], scaleX, can[WIDTH]) + halfStroke;

diff --git a/src/utils.js b/src/utils.js
@@ -50,6 +50,8 @@ export const max = M.max;
 export const pow = M.pow;
 export const log10 = M.log10;
 
+export const inf = Infinity;
+
 /*
 export function incrRound() {
 	return round(num/incr)*incr;