lib/rfs.js: throw a TypeError if options are invalid

1 files changed, 3 insertions, 7 deletions

diff --git a/lib/rfs.js b/lib/rfs.js
index a3e6d36..f76a835 100644
--- a/lib/rfs.js
+++ b/lib/rfs.js
@@ -3,10 +3,6 @@
 const postcss = require('postcss');
 const valueParser = require('postcss-value-parser');
 
-const BREAKPOINT_ERROR = 'breakpoint option is invalid, it should be set in `px`, `rem` or `em`.';
-const BREAKPOINT_UNIT_ERROR = 'breakpointUnit option is invalid, it should be `px`, `rem` or `em`.';
-const BASE_RFS_ERROR = 'baseValue option is invalid, it should be set in `px` or `rem`.';
-
 const defaultOptions = {
   baseValue: 20,
   unit: 'rem',
@@ -31,7 +27,7 @@ module.exports = class {
       } else if (this.opts.baseValue.endsWith('rem')) {
         this.opts.baseValue = Number.parseFloat(this.opts.baseValue) * this.opts.remValue;
       } else {
-        console.error(BASE_RFS_ERROR);
+        throw new TypeError('`baseValue` option is invalid, it should be set in `px` or `rem`.');
       }
     }
 
@@ -41,12 +37,12 @@ module.exports = class {
       } else if (this.opts.breakpoint.endsWith('em')) {
         this.opts.breakpoint = Number.parseFloat(this.opts.breakpoint) * this.opts.remValue;
       } else {
-        console.error(BREAKPOINT_ERROR);
+        throw new TypeError('`breakpoint` option is invalid, it should be set in `px`, `rem` or `em`.');
       }
     }
 
     if (!['px', 'rem', 'em'].includes(this.opts.breakpointUnit)) {
-      console.error(BREAKPOINT_UNIT_ERROR);
+      throw new TypeError('`breakpointUnit` option is invalid, it should be `px`, `rem` or `em`.');
     }
   }