Cannot read property 'checked' of null | Hashnode

Thread

Mohanraj

software developer

Sep 12, 2019

Cannot read property 'checked' of null

function tick(id) { let newid = 'inputtext'+id; let inputcheck = 'inputcheck'+id; var check = document.getElementById(newid); if (document.getElementById(inputcheck).checked ) { check.style = "text-decoration: line-through"; }

else if(document.getElementById(inputcheck).checked = false) {
  check.style = "text-decoration: none";
}

}

#javascript

Responses(1)

Salifu Sani Rich

Software Developer

Sep 13, 2019

Hello Mohanraj N. inputcheck variable used in the elseif block is not available here (i.e not defined) because it was declared with a let keyword in the if block.

NOTE: let is block scoped . In simple terms variables declared let within a block { } are only accessible within the block.

I hope you find this useful. Cheers!!!

Search Hashnode

Cannot read property 'checked' of null

Responses(1)

Recent threads