diff --git a/src/rules/variables.ts b/src/rules/variables.ts
index 35f4a57..4c11a51 100644
--- a/src/rules/variables.ts
+++ b/src/rules/variables.ts
@@ -32,7 +32,7 @@ export const cssProperty: Rule[] = [
 
     const [prop, ...rest] = body.split(':')
     const value = rest.join(':')
-    if (!isURI(body) && prop.match(/^[a-z-]+$/) && isValidCSSBody(value)) {
+    if (!isURI(body) && /^[a-z-]+$/.test(prop) && isValidCSSBody(value)) {
       const parsed = h.bracket(`[${value}]`)
       if (parsed)
         return { [prop]: parsed }
diff --git a/src/utils/handlers/handlers.ts b/src/utils/handlers/handlers.ts
index dfc1878..755efc0 100644
--- a/src/utils/handlers/handlers.ts
+++ b/src/utils/handlers/handlers.ts
@@ -45,7 +45,7 @@ export function auto(str: string) {
 export function rem(str: string) {
   if (!str)
     return
-  if (str.match(unitOnlyRE))
+  if (unitOnlyRE.test(str))
     return `1${str}`
   const match = str.match(numberWithUnitRE)
   if (!match)
@@ -60,7 +60,7 @@ export function rem(str: string) {
 }
 
 export function remToRpx(str: string) {
-  if (str.match(unitOnlyRE))
+  if (unitOnlyRE.test(str))
     return `1${str}`
   const match = str.match(numberWithUnitRE)
   if (!match)
@@ -78,7 +78,7 @@ export function remToRpx(str: string) {
 
 // 小程序 rpx
 export function rpx(str: string) {
-  if (str.match(unitOnlyRE))
+  if (unitOnlyRE.test(str))
     return `${unitOnlyMap[str]}${str}`
   const match = str.match(numberWithUnitRE)
   if (!match)
@@ -93,7 +93,7 @@ export function rpx(str: string) {
 }
 
 export function px(str: string) {
-  if (str.match(unitOnlyRE))
+  if (unitOnlyRE.test(str))
     return `${unitOnlyMap[str]}${str}`
   const match = str.match(numberWithUnitRE)
   if (!match)
diff --git a/src/utils/utilities.ts b/src/utils/utilities.ts
index ceaf0db..a80ed11 100644
--- a/src/utils/utilities.ts
+++ b/src/utils/utilities.ts
@@ -132,7 +132,7 @@ export function parseColor(body: string, theme: Theme, key?: ThemeColorKeys): Pa
   if (!color) {
     let colorData
     const [scale] = colors.slice(-1)
-    if (scale.match(/^\d+$/)) {
+    if (/^\d+$/.test(scale)) {
       no = scale
       colorData = getThemeColor(theme, colors.slice(0, -1))
       if (!colorData || typeof colorData === 'string')