How I can make the webpage alert if the input is empty, and write something if there as a value in the input?

Question

https://code.sololearn.com/WjW7NjB1yefw/?ref=app

Answer 1

Used this Js

function display(){
var text = document.getElementById("text").value;
var empty = ' ' ;
if (text == empty){
alert ("Please enter something in the input");
}
else {
document.write (text);
}
}

Answer 2

@Ai Emran is right

in your code as in linkjust
replace = by ==
to make if(text.value==...
that's why it was not showing result
you need to replace it
or try this
var text=document.getElementById("textbox"),

function check(){
if(text.value){
document.write(text.value);
}
//in case it's empty
else{
alert("please enter something");
}
}

document.getElementById("button").onclick=check();