AE Expressions Tip - Display Multiple Layer Names on a single Text Layer

[Roland Kahlenberg]

Occasionally, we want to display active timeline layer's names and if we don't know better, the solution is to use one Text Layer for each 'target' layer. 

BUT there's a better way - drop this Expression in a Text Layer, placed at the top of the Timeline hierarchy and drop this Expression into its source text property - 

let layerNames = "";
for (let i = 1; i <= thisComp.numLayers; i++) {
if (i === index) continue;
let targetLayer = thisComp.layer(i);
if (targetLayer.active) {
layerNames += `Layer Index:${targetLayer.index} - ${targetLayer.name}\r\n`;
}
}
layerNames.trim();

[nishu_kush]

Thanks for taking the time to create this post, Roland.

Thanks,
Nishu