This callbacks.disable() method in JQuery is used to disable a callback list from doing any other operation further. This method returns the Callbacks object onto which it is attached (this)
Syntax:
callbacks.disable()
There are two examples discussed below:
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Example: This example disables the callback after adding and firing a function.
<!DOCTYPE HTML><html><head><title>JQuery | callbacks.disable() method</title><scriptsrc=</head><bodystyle="text-align:center;"><h1style="color:green;">GeeksForGeeks</h1><pid="GFG_UP"></p><buttononclick="Geeks();">click here</button><pid="GFG_DOWN"></p><script>var el_up = document.getElementById("GFG_UP");var el_down = document.getElementById("GFG_DOWN");el_up.innerHTML = "JQuery | callbacks.disable() method";var res = "";function Geeks() {// first function to be added to the listvar fun1 = function(val) {res = res +"This is function 1 and value passed is " + val + "<br>";};// second function to be added to the listvar fun2 = function(val) {res = res +"This is function 2 and value passed is" + val + "<br>";};var callbacks = jQuery.Callbacks();callbacks.add(fun1); // adding the function 1callbacks.fire("GFG_1"); // calling the function 1callbacks.disable(); /*disables further callsto a callback list*/callbacks.add(fun2); // This will not work.callbacks.fire("GFG_2"); // This will not work.el_down.innerHTML = res;}</script></body></html> -
Output:
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Example: This example provides a button to first disable the callbacks and then add and fire the method to see the result.
<!DOCTYPE HTML><html><head><title>JQuery | callbacks.disable() method</title><scriptsrc=</head><bodystyle="text-align:center;"><h1style="color:green;">GeeksForGeeks</h1><pid="GFG_UP"></p><buttononclick="Geeks();">click here</button><buttononclick="disable();">disable</button><pid="GFG_DOWN"></p><script>var el_up = document.getElementById("GFG_UP");var el_down = document.getElementById("GFG_DOWN");el_up.innerHTML = "JQuery | callbacks.disable() method";var res = "";var callbacks = jQuery.Callbacks();function disable() {callbacks.disable();}function Geeks() {// first function to be added to the listvar fun1 = function(val) {res = res +"This is function 1 and value passed is " + val + "<br>";};// second function to be added to the listvar fun2 = function(val) {res = res +"This is function 2 and value passed is" + val + "<br>";};callbacks.add(fun1); // adding the function 1callbacks.fire("GFG_1"); // calling the function 1callbacks.add(fun2); // This will not work.callbacks.fire("GFG_2"); // This will not work.el_down.innerHTML = res;}</script></body></html> -
Output:
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