Effect hooks for Lit-Elements

Two effect hooks, useOnce and useEffect, that can be used to trigger something only on first render, or when specific things change.

Installation

npm install lit-element-effect

Usage

@property()
prop: string | undefined;

render() {
    useOnce(this, () => {
        console.log("triggered once")
    })

    useEffect(this, () => {
        console.log("triggered each time this.prop changes.");
        console.log("Current Value: ", this.prop)
    }, [this.prop])
}