reduce bundle size by avoiding ?. syntax

Bart Veneman · Bart Veneman · commit 360db34d6e43 · 2022-09-20T16:13:56.000+02:00
diff --git a/src/index.js b/src/index.js
@@ -309,7 +309,11 @@ const analyze = (css) => {
         }
 
         // i.e. `property: value\9`
-        if (node.children?.last?.type === 'Identifier' && endsWith('\\9', node.children.last.name)) {
+        if (node.children
+          && node.children.last
+          && node.children.last.type === 'Identifier'
+          && endsWith('\\9', node.children.last.name)
+        ) {
           valueBrowserhacks.push(stringifyNode(node))
         }
 
diff --git a/src/values/values.js b/src/values/values.js
@@ -8,7 +8,8 @@ const keywords = {
 }
 
 export function isValueKeyword(node) {
-  const firstChild = node.children?.first
+  if (!node.children) return false
+  const firstChild = node.children.first
   if (!firstChild) return false
 
   if (node.children.size > 1) return false

Original file line number	Diff line number	Diff line change
`@@ -309,7 +309,11 @@ const analyze = (css) => {`
`309`	`309`	`}`
`310`	`310`
`311`	`311`	// i.e. `property: value\9`
`312`		`- if (node.children?.last?.type === 'Identifier' && endsWith('\\9', node.children.last.name)) {`
	`312`	`+ if (node.children`
	`313`	`+ && node.children.last`
	`314`	`+ && node.children.last.type === 'Identifier'`
	`315`	`+ && endsWith('\\9', node.children.last.name)`
	`316`	`+ ) {`
`313`	`317`	`valueBrowserhacks.push(stringifyNode(node))`
`314`	`318`	`}`
`315`	`319`
Original file line number	Diff line number	Diff line change
`@@ -8,7 +8,8 @@ const keywords = {`
`8`	`8`	`}`
`9`	`9`
`10`	`10`	`export function isValueKeyword(node) {`
`11`		`- const firstChild = node.children?.first`
	`11`	`+ if (!node.children) return false`
	`12`	`+ const firstChild = node.children.first`
`12`	`13`	`if (!firstChild) return false`
`13`	`14`
`14`	`15`	`if (node.children.size > 1) return false`