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21 lip 2010 · if you don't have multiple selection You can do it like. var yourSelect = document.getElementById( "your-select-id" ); alert(yourSelect.selectedOptions[0].value) Will do the same thing like the choosen answer. Since .selectedOptions gives you a list of selected options elements.
2 kwi 2021 · Array.prototype.select = function(closure){ for(var n = 0; n < this.length; n++) { if(closure(this[n])){ return this[n]; } } return null; }; now you can use this: var x = [1,2,3,4]; var a = x.select(function(v) { return v == 2; }); console.log(a);
In this article, we'll discuss three of the most common methods for getting the selected value in a dropdown list: using the value property, using the selectedIndex property, and using the options collection.
20 maj 2024 · To get a selected value from an array in JavaScript, you can use square brackets notation, specifying the desired index: “`javascript let selectedFruit = fruits[2];
25 mar 2023 · The easiest way to get the current directory name in JavaScript is to use the window.location.pathname property. This property returns the path and file name of the current page, including the initial slash (/). var currentPath = window.location.pathname; var directoryName = currentPath.substring(currentPath.lastIndexOf('/') + 1);
5 lut 2024 · The find() method of Array instances returns the first element in the provided array that satisfies the provided testing function. If no values satisfy the testing function, undefined is returned. If you need the index of the found element in the array, use findIndex().
7 mar 2024 · We used the Array.from() method to convert the collection of option elements to an array. We then used the Array.filter() to get an array containing only the selected option elements. Lastly, we used Array.map() to get an array of the values of the selected option elements.
