$.fn.attr: doing nothing when the value equals undefined

fabiospampinato · fabiospampinato · commit 612635aae630 · 2019-05-12T21:24:54.000+02:00
Closes #277
diff --git a/src/attributes/attr.ts b/src/attributes/attr.ts
@@ -31,6 +31,8 @@ function attr ( this: Cash, attr?: string | plainObject, value?: string ) {
 
     }
 
+    if ( value === undefined ) return this;
+
     if ( value === null ) return this.removeAttr ( attr );
 
     return this.each ( ( i, ele ) => { ele.setAttribute ( attr, value ) } );

Original file line number	Diff line number	Diff line change
`@@ -31,6 +31,8 @@ function attr ( this: Cash, attr?: string \| plainObject, value?: string ) {`
`31`	`31`
`32`	`32`	`}`
`33`	`33`
	`34`	`+ if ( value === undefined ) return this;`
	`35`	`+`
`34`	`36`	`if ( value === null ) return this.removeAttr ( attr );`
`35`	`37`
`36`	`38`	`return this.each ( ( i, ele ) => { ele.setAttribute ( attr, value ) } );`