How to use unist-util-filter - 1 common examples
To help you get started, we’ve selected a few unist-util-filter examples, based on popular ways it is used in public projects.
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logux / logux.io / scripts / steps / create-layout.js View on Github 
unistVisit(tree, 'element', node => {
let cls = node.properties.className || []
if (node.tagName === 'article') {
node.children = []
} else if (node.tagName === 'a') {
if (cls.some(i => i === 'menu_link')) {
node.properties.className = cls.filter(i => i !== 'is-current')
}
} else if (cls[0] === 'submenu') {
node.children = []
} else if (cls[0] === 'menu_extra') {
node.children = [{ type: 'text', value: `(${ chatUsers } people)` }]
}
})
let articles = 0
return unistFilter(tree, 'element', node => {
let props = node.properties || { }
if (node.tagName === 'article') {
articles += 1
return articles === 1
} if (node.tagName === 'script') {
return !removeAssets.some(i => props.src.includes(i))
} else if (node.tagName === 'link' && props.rel[0] === 'stylesheet') {
return !removeAssets.some(i => props.href.includes(i))
} else if (node.tagName === 'link' && props.rel[0] === 'preload') {
return !removeAssets.some(i => props.href.includes(i))
} else if (node.tagName === 'link' && props.rel[0] === 'preconnect') {
return !removeAssets.some(i => props.href.includes(i))
} else {
return true
}
})unist-util-filter
unist utility to create a new tree with nodes that pass a filter
