If I have the following function:
function check(){
alert("Welcome");
}
window.onload = check();
setInterval("check();", 5000);
However, it is not working properly. Oddly enough, when I refresh the page, it works as intended. How can I resolve this issue?
I have found this method to be quite effective. It's worth noting the use of a function reference rather than directly calling the function and assigning its return value. With setInterval, there is no need to use a string, which would require evaluating the argument. You can simply use a function reference or even an anonymous function as the argument.
function checkStatus() {
alert('checking');
}
window.onload = checkStatus;
setInterval(checkStatus, 5000);
To have the alert show up once, after a delay of 5 seconds, you can utilize the following code:
function displayAlert(){
alert("Welcome");
}
setTimeout("displayAlert()", 5000);
If you prefer the alert to pop up every 5 seconds (although this might be considered irritating, unless there is a valid reason for using setInterval)
function displayAlert(){
alert("Welcome");
}
setInterval("displayAlert()", 5000);
function startAlert(){
alert("Greetings");
}
window.onload = startAlert();
setInterval("startAlert();", 5000);
window.onload is not functioning as expected due to startAlert not returning anything. It's advisable to update the setInterval method like so: setInterval(startAlert, 5000);
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