nativescript vue back button handler

ByAnurag batra August 6, 2022June 30, 2022

if (application.android) {
    application.android.on(application.AndroidApplication.activityBackPressedEvent, function() {
        // commit or dispatch stop player
    );
}

Here is what the above code is Doing:
1. We’re using the application.android.on() method to listen for the activityBackPressedEvent.
2. When the event is triggered, we’re using the application.android.foregroundActivity property to get a reference to the current activity.
3. We’re using the activity.moveTaskToBack() method to move the app to the background.

Note: If you want to move the app to the background without triggering the activityBackPressedEvent, you can use the application.android.foregroundActivity.moveTaskToBack() method.

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expo update react native

ByAnurag batra July 7, 2022June 30, 2022

expo install expo-updates Here is what the above code is Doing: 1. We’re importing the Updates module from the expo package. 2. We’re calling the checkForUpdateAsync() method from the Updates module. 3. We’re calling the fetchUpdateAsync() method from the Updates module. 4. We’re calling the reloadAsync() method from the Updates module.

how do i listen to a keypress in javascript

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how do i listen to a keypress in javascript

ByAnurag batra July 2, 2022June 30, 2022

let b = document.getElementById(“body”); //making var for body b.addEventListener(“keydown”, (evt) => {//when this happens console.log(evt.keyCode); //log keycode }); Here is what the above code is Doing: 1. We’re creating a variable called b that is equal to the body element. 2. We’re adding an event listener to the body element that listens for a keydown…

como agregar items en un array javascript

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como agregar items en un array javascript

ByAnurag batra July 19, 2022June 30, 2022

var myNamesArray = [“Pepe”, “Ronaldo”, “Ricardo”]; myNamesArray.push(“María”); Here is what the above code is Doing: 1. We create a variable called myNamesArray and assign it to an array with three strings inside. 2. We use the push() method to add a new string to the end of the array.

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angular formarray remove all

ByAnurag batra July 5, 2022June 30, 2022

const arr = new FormArray([ new FormControl(), new FormControl() ]); console.log(arr.length); // 2 arr.clear(); console.log(arr.length); // 0 Here is what the above code is Doing: 1. We create a new FormArray instance with two FormControls. 2. We log the length of the array. 3. We call the clear() method on the array. 4. We log…

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add numbers from array nodejs

ByAnurag batra July 30, 2022June 30, 2022

console.log( [].reduce((a, b) => a + b) ) Here is what the above code is Doing: 1. We’re using the reduce method on an empty array. 2. We’re passing in a function as the first argument to reduce. 3. The function we’re passing in takes two arguments, a and b. 4. The function returns the…

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js .flat

ByAnurag batra August 6, 2022June 30, 2022

var multiDimensionArray = [[“a”],[“b”,”c”],[“d”]]; //array of arrays var flatArray = Array.prototype.concat.apply([], multiDimensionArray); //flatten array of arrays console.log(flatArray); // [ “a”,”b”,”c”,”d”]; Here is what the above code is Doing: 1. We have an array of arrays. 2. We use the apply() method to call the concat() method on the first array. 3. The concat() method takes…

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