hhow to check input is null in html using js

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showing results for - "hhow to check input is null in html using js"
Mirko
27 Aug 2017
1function required(inputtx) 
2   {
3     if (inputtx.value.length == 0)
4      { 
5         alert("message");  	
6         return false; 
7      }  	
8      return true; 
9    } 
10
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