Generate an HTML ul/li list based on the contents of a JavaScript array or how to create a JavaScript list.
By modifying the makeList() function to accept parameters and target elements, you can pass different arrays and generate different lists inside different containers.
Solution 1
This vanilla JavaScript function has zero dependencies and works in all browsers.
functionĀ makeList() {
// Establish the array which acts as a data source for the list
letĀ listDataĀ =Ā [
'Blue',
'Red',
'White',
'Green',
'Black',
'Orange'
],
// Make a container element for the list
listContainerĀ =Ā document.createElement('div'),
// Make the list
listElementĀ =Ā document.createElement('ul'),
// Set up a loop that goes through the items in listItems one at a time
numberOfListItemsĀ =Ā listData.length,
listItem,
i;
// Add it to the page
document.getElementsByTagName('body')[0].appendChild(listContainer);
listContainer.appendChild(listElement);
for (iĀ =Ā 0; i < numberOfListItems;Ā ++i) {
// create an item for each one
listItemĀ =Ā document.createElement('li');
// Add the item text
listItem.innerHTMLĀ =Ā listData[i];
// Add listItem to the listElement
listElement.appendChild(listItem);
}
}
// Usage
makeList();See a JSFiddle demo here.
Solution 2
This function is more compact and uses a forEach() loop:
let items = [
'Blue',
'Red',
'White',
'Green',
'Black',
'Orange'
],
ul = document.createElement('ul');
document.getElementById('myItemList').appendChild(ul);
items.forEach(function (item) {
let li = document.createElement('li');
ul.appendChild(li);
li.innerHTML += item;
});Here’s another way of doing it, similar to the first solution. Note that the forEach() loop is marginally slower.
Check out this jsPerf test in a modern browser.
Find more JavaScript tutorials, code snippets and samples here or more jQuery tutorials, code snippets and samples here.
