To the right of the site, click More Block.Under "Allowed to send pop-ups and use redirects," find the site.Click Privacy and security Site Settings.That way you can provide more context and purposeful design. It’s probably better to use a to get information from the user.
The Alternative: Like all of the other native JavaScript alerts, this doesn’t allow you to style or position the alert box. If they choose Cancel, the return value will be null. If they enter nothing and click OK, you’ll get an empty string. How it works: If the user clicks OK, you’ll get what they entered into the input. You provide a string (probably formatted like a question) and the user sees a popup with that string, an input they can type into, and “OK” and “Cancel” buttons. What it’s for: Prompting the user for an input. Prompt("Example?", "Default Example") by Elliot KG ( CodePen. answer is what the user typed in, if anything Let answer = window.prompt("What is your favorite color?") window.prompt() window.prompt("What’s your name?") Probably a clear UI with a Confirm wired up to do what you need it to do. There are any number of ways to ask a user to confirm something. …maybe you don’t want to use a warning at all.” The Alternative: This is a very intrusive way to prompt the user. How it works: You can provide a custom message and popup will give you the option of “OK” or “Cancel,” a value you can then use to see what was returned.
What it’s for: “Are you sure?”-style messages to see if the user really wants to complete the action they’ve initiated. Let answer = nfirm("Do you like cats?") Ĭonfirm("Example") by Elliot KG ( CodePen. If you’re trying to debug the value of a variable, consider console.log("Value of variable: ", variable) and looking in the console. The Alternative: Like the other alerts, if you have to present a message to the user, it’s probably better to do it in a way that’s tailor-made for what you’re trying to do. You can only change the message and not any other aspect, like what the button says. How it works: This function takes a string and presents it to the user in a popup with a button with an “OK” label. What it’s for: Displaying a simple message or debugging the value of a variable. window.alert() window.alert("Hello World") Ĭonst button = document.querySelectorAll("button") Īlert("Text of button: " + button.innerText) Īlert("Example") by Elliot KG ( CodePen. With that out of the way, let’s look at each one of the native popups. Unless you absolutely need the complete blocking nature of them, it’s almost always better to use a custom user interface that you can design to tailor the experience for the user. You can’t control *where* they appear on the page or what they look like when they get there. Native JavaScript alerts are also implemented by browsers in such a way that you have zero design control. Nine times out of ten, you’d be better off architecting things so that you don’t have to use such heavy-handed stop-everything behavior.
And crucially, no other main-thread JavaScript is running while the popup is open, which could (and probably is) unnecessarily preventing your site from doing things it needs to do. You can’t interact with anything on the page while one is open - that’s kind of the point of a “modal” but it’s still a UX consideration you should be keenly aware of. The entire page essentially stops when a popup is open. There is one big problem you should know about up front You can also see how Chrome is pinned to the top of the window. Note the additional UI preventing additional dialogs in Firefox from triggering it more than once. Here’s Firefox and Chrome: Native popups in Firefox (left) and Chrome (right). The UI for this varies from browser to browser, but generally you’ll see a little window pop up front and center in a very show-stopping way that contains the message you just passed. JavaScript has a variety of built-in popup APIs that display special UI for user interaction.
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