I'm experiencing an issue with the following if condition:
function turnLedOn1(evt) {
led.on();
var executed = false;
if (!executed) {
executed = true;
checkin1 = timestamp;
alert('checkin1');
}
}
Despite the intended behavior of only executing the if loop once, I am receiving multiple alerts (around 15) before it stops. Any suggestions on why this might be happening?
To optimize your code, it is recommended to move the declaration of var executed = false; outside the function closure.
var executed = false;
function turnLedOn1(evt) {
led.on();
if (!executed) {
executed = true;
checkin1 = timestamp;
alert('checkin1');
}
}
Declaring a variable within a function restricts its access only within that specific 'closure'. Each time the function runs, the variable gets reset as it is reinitialized with var ... = false;. Learn more about closures here.
Setting executed as false and then verifying if it is actually false - quite the paradox, isn't it? Perhaps keeping var executed = false global outside the function might do the trick.
var executed = false;
if (!executed) {
...
}
Warm regards,
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