watch_throttled

A throttled version of leptos::watch.

Demo

Usage

use leptos::prelude::*;
use leptos::logging::log;
use leptos_use::watch_throttled;

pub fn Demo() -> impl IntoView {
    let (source, set_source) = signal(0);

watch_throttled(
    move || source.get(),
    move |_, _, _| {
        log!("changed!");
    },
    500.0,
);

   view! { }
}

This really is only shorthand shorthand for watch_with_options(deps, callback, WatchOptions::default().throttle(ms)).

Please note that if the current component is cleaned up before the throttled callback is called, the throttled callback will not be called.

There's also watch_throttled_with_options where you can specify the other watch options (except filter).

use leptos::prelude::*;
use leptos::logging::log;
use leptos_use::{watch_throttled_with_options, WatchThrottledOptions};

pub fn Demo() -> impl IntoView {
    let (source, set_source) = signal(0);

watch_throttled_with_options(
    move || source.get(),
    move |_, _, _| {
        log!("changed!");
    },
    500.0,
    WatchThrottledOptions::default().leading(true).trailing(false),
);

   view! { }
}

Recommended Reading

• Debounce vs Throttle: Definitive Visual Guide
• Debouncing and Throttling Explained Through Examples

Server-Side Rendering

On the server the callback will never be called except if you set immediate to true in which case the callback will be called exactly once.

See also

• leptos::watch
• watch_debounced

Feature

This function is only available if the crate feature watch_throttled is enabled

Types

• struct WatchThrottledOptions

Source

Source • Demo • Docs