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What does = +_ mean in JavaScript
...how use of =+ to convert a string into int.
example:
y = +'5'
x = y +5
alert(x);
outputs 10
use: So here y is int 5 because of =+
otherwise:
y = '5'
x = y +5
alert(x);
outputs 55
Where as _ is a variable.
_ = + '5'
x = _ + 5
alert(x)
outputs 10
Additionally,
It would be interesting...
Is there any way to call a function periodically in JavaScript?
...
You want setInterval():
var intervalID = setInterval(function(){alert("Interval reached");}, 5000);
The first parameter to setInterval() can also be a string of code to be evaluated.
You can clear a periodic function with:
clearInterval(intervalID);
...
Do htmlspecialchars and mysql_real_escape_string keep my PHP code safe from injection?
...< or > to do anything dangerous. Our attack vector could just be javascript:alert(document.cookie)
Now resultant HTML looks like
<img src= "javascript:alert(document.cookie)" />
The attack gets straight through.
It gets worse. Why? because htmlspecialchars (when called this way) on...
How can I create a simple message box in Python?
I'm looking for the same effect as alert() in JavaScript.
17 Answers
17
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Detecting a mobile browser
... <= 600 ) );
}
Reference:
Detecting Browser and Devices with javascript
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Is using 'var' to declare variables optional? [duplicate]
...he differences:
external = 5;
function firsttry() {
var external = 6;
alert("first Try: " + external);
}
function secondtry() {
external = 7;
alert("second Try: " + external);
}
alert(external); // Prints 5
firsttry(); // Prints 6
alert(external); // Prints 5
secondtry(); // Prints 7
aler...
jQuery and AJAX response header
... it in an iframe, but when I try to view the header info with a javascript alert, it comes up null, even though firebug sees it correctly.
...
Turning live() into on() in jQuery
...y ".live()" method is depreciated since v1.7 and removed in v1.9. Fix your scripts by using the ".on()" method instead. Surprisingly this also affects the current Microsoft jquery.unobtrusive-ajax.js v2.0.20710.0 (Microsoft didn't update their scripts either so now it is broken).
...
How to add a touch event to a UIView?
...l.text = "Long press recognized"
// example task: show an alert
if gesture.state == UIGestureRecognizerState.began {
let alert = UIAlertController(title: "Long Press", message: "Can I help you?", preferredStyle: UIAlertControllerStyle.alert)
alert.add...
Get image data url in JavaScript?
...image.
It would be something like this. I've never written a Greasemonkey script, so you might need to adjust the code to run in that environment.
function getBase64Image(img) {
// Create an empty canvas element
var canvas = document.createElement("canvas");
canvas.width = img.width;
...