jsrrdgraph: Fixed jshint warnings/errors

Many fall in the category missing semicolon, but there are legitimate
bugs (like throwing an error with an undefined variable, using
isInfinite instead of !isFinite or fabs instead of Math.abs).

At some places, I moved the variable declarations to avoid duplicate
definition warnings.

Redundant breaks have been removed (after return / throw).

Global variables were implicitly defined in RrdDataFile (which caught my
attention) and Base64, these have been made local.

Also fixed some whitespace errors. Yay, the consistency. Not all (style)
issues are fixed.

1 files changed, 11 insertions, 10 deletions

diff --git a/js/RrdDataFile.js b/js/RrdDataFile.js
index 4ebb220..2c0e846 100644
--- a/js/RrdDataFile.js
+++ b/js/RrdDataFile.js
@@ -42,21 +42,23 @@ RrdDataFile.prototype = {
                 var cal_start, cal_end;
                 var best_full_rra = 0, best_part_rra = 0, chosen_rra = 0;
                 var best_full_step_diff = 0, best_part_step_diff = 0, tmp_step_diff = 0, tmp_match = 0, best_match = 0;
-                var full_match, rra_base;
+                var full_match;
                 var first_full = 1;
                 var first_part = 1;
                 var data_ptr;
                 var rows;
+                var rra;
+                var i, ii;
 
                 var cf_idx = gdp.cf;
                 var ds_cnt = rrd.getNrDSs();
                 var rra_cnt = rrd.getNrRRAs();
 
-                for (var i = 0; i < ds_cnt; i++)
+                for (i = 0; i < ds_cnt; i++)
                         gdp.ds_namv[i] = rrd.rrd_header.getDSbyIdx(i).getName();
 
-                for (var i = 0; i < rra_cnt; i++) {
-                        var rra = rrd.getRRAInfo(i);
+                for (i = 0; i < rra_cnt; i++) {
+                        rra = rrd.getRRAInfo(i);
                         if (RrdGraphDesc.cf_conv(rra.getCFName()) === cf_idx) {
                                 cal_end = (rrd.getLastUpdate() - (rrd.getLastUpdate() % (rra.getPdpPerRow() * rra.pdp_step)));
                                 cal_start = (cal_end - (rra.getPdpPerRow() * rra.row_cnt * rra.pdp_step));
@@ -87,7 +89,7 @@ RrdDataFile.prototype = {
                 else throw "the RRD does not contain an RRA matching the chosen CF";
 
                 var rra_info = rrd.getRRAInfo(chosen_rra);
-                var rra = rrd.getRRA(chosen_rra);
+                rra = rrd.getRRA(chosen_rra);
 
                 ft_step = rrd.rrd_header.pdp_step * rra_info.getPdpPerRow();
                 gdp.start -= (gdp.start % ft_step);
@@ -107,13 +109,13 @@ RrdDataFile.prototype = {
 
                 for (i = start_offset; i < rra.row_cnt - end_offset; i++) {
                         if (i < 0) {
-                                for (var ii = 0; ii < ds_cnt; ii++)
+                                for (ii = 0; ii < ds_cnt; ii++)
                                         gdp.data[data_ptr++] = Number.NaN;
                         } else if (i >= rra.row_cnt) {
-                                for (var ii = 0; ii < ds_cnt; ii++)
+                                for (ii = 0; ii < ds_cnt; ii++)
                                         gdp.data[data_ptr++] = Number.NaN;
                         } else {
-                                for (var ii = 0; ii < ds_cnt; ii++)
+                                for(ii = 0; ii < ds_cnt; ii++)
                                         gdp.data[data_ptr++] = rra.getEl(i, ii);
                         }
                 }
@@ -153,8 +155,7 @@ RrdDataFile.prototype = {
         },
         fetch_async: function(gdp, ft_step, callback, callback_arg)
         {
-                var rrd;
-                if (gdp.rrd == null) return -1;
+                if (gdp.rrd === null) return -1;
 
                 if (gdp.rrd in this.rrdfiles) {
                         callback(callback_arg, this.build(gdp, ft_step, this.rrdfiles[gdp.rrd]));