Good as they are? I have a question on how I can make a value in javascrip can add it again and again, that is, for example I can make 1 + 1 + 1 equal to 3 without having to create a variable for each of them.
This is the calculator that I am doing and each button has a symbol now what I want to do is that it throws me a result
You can write a string with the operation in a field and with the function eval evaluate the string and it will return the result
<!DOCTYPE html>
<html>
<head>
<script>
var num = 0;
function evaluar() {
var ev = document.getElementById("evaluar").value
document.getElementById("resultado").innerHTML = eval(ev);
}
</script>
</head>
<body >
<input type="text" id="evaluar" value="1+1+1">
<input name="suma" type="button" onClick="evaluar()" value="suma" />
<p id="resultado"></p>
</body>
</html> Implement a cycle for and increase the variable:
var i;
var numero = 1;
for (i = 0; i < 5; i++) {
numero ++;
console.log(numero)
}
Hello, use the eval function (text string). This will give you the result you want. Enter the entire operation string in the eval function.
eval("2 + 2"); // devuelve 4