setInterval using a non anonymous function requiring parameters has to be inside an anonymous function. Why?
Date : March 29 2020, 07:55 AM
Hope this helps setInterval expects a function as the first parameter. When you attempt: setInterval(function() {...}, 100);
setInterval(funcName, 100);
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Capturing counter around switch inside anonymous classes inside some cases?
Date : March 29 2020, 07:55 AM
With these it helps I was trying to write a switch inside a loop, where inside 2/5 of the cases, an anonymous class is made, which captures the loop counter. It's not straight forward because the counter needs to be final to be able to be captured by the anonymous inner class. The solution is simple though, just make a final int i_ which gets set to the counter variable. The problem is that it doesn't work (I guess because there's more than one case). Here is an extremely simplified piece of code that has the same problem as in my real code: , Add braces: case A: {
...
}
case B: {
...
}
...
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php call anonymous functions inside anonymous function
Tag : php , By : Steve Jones
Date : March 29 2020, 07:55 AM
wish help you to fix your issue You have to use use construct. It allows to inherit variables from the parent scope: function foo(callable $succCallback) {
$isCallable = is_callable($succCallback);
echo "is callable outer ".is_callable($succCallback);
$success = function($fileInfo) use($succCallback) {
echo "<br>is callable inner".is_callable($succCallback);
};
$this->calllll($success);
}
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Scopes and Closures - Return anonymous function inside another anonymous function?
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , Of course anonymous functions can return other functions. Functions are first-class-citizens in js. Every embedded function has access on the context of the enveloping function, except for the this property. You can use the context of the four forEach functions to store the number of increments. When you return something from withing an event listener, i dont know if this return is ever used somewhere. It maybe just exists the function. var buttons = document.querySelectorAll("button");
buttons.forEach(function(button){
var increment = 0;
button.addEventListener("click", function(event){
increment++;
alert("button " + event.currentTarget.innerHTML + ":" + " has been clicked " + increment + " times." );
}
);
});
<button>1</button>
<button>2</button>
<button>3</button>
<button>4</button>
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Access an instance variable inside an anonymous function inside prototype method
Date : March 29 2020, 07:55 AM
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