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authorJohn MacFarlane <jgm@berkeley.edu>2015-01-13 22:51:51 -0800
committerJohn MacFarlane <jgm@berkeley.edu>2015-01-13 22:54:21 -0800
commit9fbc6267a4f6cd87c92fa6f57f437aacbac4fb72 (patch)
treedd80aa7af9614a75869102710022e8f7d2562b0a /js
parentdaf49a0089b9f5e342d3f6ee077d7e284eeb5c1c (diff)
Initialize fields in objects to null rather than undefined.
Big speed boost.
Diffstat (limited to 'js')
-rw-r--r--js/lib/blocks.js14
-rw-r--r--js/lib/node.js22
-rw-r--r--js/lib/xml.js10
3 files changed, 23 insertions, 23 deletions
diff --git a/js/lib/blocks.js b/js/lib/blocks.js
index d53a82f..cb4bd5f 100644
--- a/js/lib/blocks.js
+++ b/js/lib/blocks.js
@@ -161,7 +161,7 @@ var addChild = function(tag, offset) {
var column_number = offset + 1; // offset 0 = column 1
var newBlock = new Node(tag, [[this.lineNumber, column_number], [0, 0]]);
newBlock.strings = [];
- newBlock.string_content = undefined;
+ newBlock.string_content = null;
this.tip.appendChild(newBlock);
this.tip = newBlock;
return newBlock;
@@ -173,12 +173,12 @@ var parseListMarker = function(ln, offset, indent) {
var rest = ln.slice(offset);
var match;
var spaces_after_marker;
- var data = { type: undefined,
+ var data = { type: null,
tight: true,
- bullet_char: undefined,
- start: undefined,
- delimiter: undefined,
- padding: undefined,
+ bullet_char: null,
+ start: null,
+ delimiter: null,
+ padding: null,
marker_offset: indent };
if (rest.match(reHrule)) {
return null;
@@ -654,7 +654,7 @@ var processInlines = function(block) {
var Document = function() {
var doc = new Node('Document', [[1, 1], [0, 0]]);
- doc.string_content = undefined;
+ doc.string_content = null;
doc.strings = [];
return doc;
};
diff --git a/js/lib/node.js b/js/lib/node.js
index e58c7c7..c90c3e9 100644
--- a/js/lib/node.js
+++ b/js/lib/node.js
@@ -72,17 +72,17 @@ var Node = function(nodeType, sourcepos) {
this.sourcepos = sourcepos;
this.last_line_blank = false;
this.open = true;
- this.strings = undefined;
- this.string_content = undefined;
- this.literal = undefined;
- this.list_data = undefined;
- this.info = undefined;
- this.destination = undefined;
- this.title = undefined;
- this.fence_char = undefined;
- this.fence_length = undefined;
- this.fence_offset = undefined;
- this.level = undefined;
+ this.strings = null;
+ this.string_content = null;
+ this.literal = null;
+ this.list_data = null;
+ this.info = null;
+ this.destination = null;
+ this.title = null;
+ this.fence_char = null;
+ this.fence_length = null;
+ this.fence_offset = null;
+ this.level = null;
};
Node.prototype.isContainer = function() {
diff --git a/js/lib/xml.js b/js/lib/xml.js
index e867fdc..ada61f7 100644
--- a/js/lib/xml.js
+++ b/js/lib/xml.js
@@ -91,16 +91,16 @@ var renderNodes = function(block) {
switch (nodetype) {
case 'List':
var data = node.list_data;
- if (data.type !== undefined) {
+ if (data.type !== null) {
attrs.push(['type', data.type.toLowerCase()]);
}
- if (data.start !== undefined) {
+ if (data.start !== null) {
attrs.push(['start', String(data.start)]);
}
- if (data.tight !== undefined) {
+ if (data.tight !== null) {
attrs.push(['tight', (data.tight ? 'true' : 'false')]);
}
- if (data.delimiter !== undefined) {
+ if (data.delimiter !== null) {
var delimword = '';
if (data.delimiter === '.') {
delimword = 'period';
@@ -128,7 +128,7 @@ var renderNodes = function(block) {
}
if (options.sourcepos) {
var pos = node.sourcepos;
- if (pos !== undefined) {
+ if (pos) {
attrs.push(['data-sourcepos', String(pos[0][0]) + ':' +
String(pos[0][1]) + '-' + String(pos[1][0]) + ':' +
String(pos[1][1])]);