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JS. How do you add input type " number" as a number _ and avoid strings?
HTML || JS - Is there a way to add inputs (specifically _ "number").value? If I had 3 input type = "number", How do you add their values as a number? When I did it, it added it up as a string. And when I used += it adds a number to the one input. Here's the code I had: https://code.sololearn.com/WYnILBeR2Kkx/?ref=app
10 ответов
+ 2
Getting NaN as the output IS wrong. The first thing:
Turning an HTML element into a number will result in NaN, you should probably get the value of it. Second: you don't have to use other lines to make them numbers:
+document.getElementById("inp1").value
(Notice that the plus sign is there, so you don't have to use seperate lines)
Second:
Now that I actually look at your code, I think it would be easier to use 2 - signs:
inbA.value -- inpB.value
Subtraction doesn't work on strings, so they will be treated as numbers, and you don't have to change lots of things
+ 1
There are two different ways to turn a string into a number: with a plus sign and with parseInt.
I personally like + better, since it js shorter and also accepts floats
input = +input;
input = parseInt(input);
+ 1
I just showed you
+ 1
Probably because you took the inputs while the page loaded; most people have problems typing that fast. Just use what you used at first:
inpA = document.getElementById("inp1");
...
but.innerHTML = inpA.value - - inpB.value
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Airree Could u please show me on the code using +
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In addition to Airre:
var input = parseInt(input, 10);
Where 10 is specified radix. Read
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/parseInt
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Airree , can u please look at my attempt code; im trying to add up the two inputs' .value and put it in the button.innerHTML.
I tried + and i got NaN -
not that i'm saying it's wrong, but can u show me the right way (in the code)
Thanks _
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Airree , why is it giving me 0, even though i entered 5 and 9?
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Airree , it works _ Thanks ✔️💡