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Line 27 #175

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ranjanrnj44 opened this issue Dec 28, 2019 · 3 comments
Closed

Line 27 #175

ranjanrnj44 opened this issue Dec 28, 2019 · 3 comments

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@ranjanrnj44
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In line 27 if I'm making it's value empty it is not working,
Something like this ('' => ' ')

input.value = ''; => input.value = " "; //this statement show's can't find if I left space in-between " "

In the eg code line 27 with space in-between (" ") and run the code, in input field 2nd try error occurs all the time
@chrisdavidmills
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Which example are you referring to? "Line 27" doesn't really help me ;-)

Anyway, I'm guessing that you are looking at an example featuring a form input element, and in the JavaScript we are checking whether the input is empty or not.

input.value = '' checks whether the input is empty, i.e. if its value is an empty string.

input.value = ' ' on the other hand is checking whether the input value is equal to a single space character, so will fail if it is anything else.

Does that answer your question? If not, please give me some more details, and I will help you further.

All the best.

@ranjanrnj44
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"Sorry I forgot to post the code"

<!DOCTYPE html>
<html>
  <head>
    <meta name="viewport" content="width=device-width" />
    <title></title>
  </head>

  <body>
   <label for="search">Name : </label>
  <input id="search" type="text">
  <button>Search</button>

  <p></p>
    
    <script>
     let input = document.querySelector("input");
      let btn = document.querySelector("button");
      let para = document.querySelector("p");

      btn.addEventListener(`click` , function(){
        let val = input.value.toLowerCase();
        //console.log(val);'
   input.value = "";
        input.focus();
        let contacts = [`ranjan:12345` , `jan:78906` , `ran:56882`];
        for(let i=0 ; i<contacts.length ; i++){
          let contact = contacts[i];
          //console.log(contact);
          let split_it = contact.split(":");
          //console.log(split_it);
          if(val === split_it[0].toLowerCase()){
            para.textContent = `So, you're looking for ${split_it[0]} of ${split_it[1]}`;
            break;
          }
          else{
            para.textContent = `Sorry, couldn't find the result`;
          }
        }
      });
    </script>
  </body>
</html>

input.value = ""; (is the line) . And now I'm clear by our explanation, It was really helpful, Thank you.

@chrisdavidmills
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Good, glad it helped ;-)

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@chrisdavidmills @ranjanrnj44