Function callback

highlight-keywords/highlight-keywords.user.js:486–494

(mutationsList, observer)

        // 当观察到变动时执行的回调函数
        const callback = function (mutationsList, observer) {
            let nodeMap = new Map
            setTimeout(() => {
                mutationsList.forEach(node => { nodeMap.set(node.target) })
                nodeMap.forEach((value, node) => {
                    doOnce(node)
                })
            }, 1)
        }

        // 创建一个观察器实例并传入回调函数
        const observer = new MutationObserver(callback)