Browser console script to get grouped template usage from a Global Search results page

graph-template-usage.js

data = Array.from( document.querySelector( 'tbody' ).children )
    .map( ( tr ) => [ tr.children[0].textContent, tr.children[1].textContent.trim() ] );

dataWithCounts = [];
for ( const [ wiki, pagename ] of data ) {
    if ( !wiki.endsWith( '.wikipedia' ) ) {
        continue;
    }
    let count = -1;
    try {
        const fetched = await fetch( `https://linkcount.toolforge.org/api/?page=${pagename}&project=${wiki}.org&namespaces=0` );
        const fetchedAsJson = await fetched.json();
        count = fetchedAsJson.transclusions.all;
        console.log(wiki,pagename,count);
    } catch ( e ) {
        console.log(wiki, pagename, e);
    }
    dataWithCounts.push( [ wiki, pagename,  count ] );
}

groupedByName = {};
for ( const [wiki, pagename, count] of dataWithCounts ) {
    const unprefixed = pagename.replace( /^[^:]+:/, '' );
    groupedByName[unprefixed] = groupedByName[unprefixed] || { total: 0, wikis: [] };
    if ( count >= 0 ) {
        groupedByName[unprefixed].total += count;
    }
    groupedByName[unprefixed].wikis.push( wiki );
}

copy( Object.entries( groupedByName ).map( ( [ pagename, { total, wikis } ] ) =>
    `"${pagename}",${total},${wikis.length},${wikis.join(',')}`
).join( '\n' ) );
// Paste into a .csv file