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Filter Node

Filter input data based on a condition.

Parameters​

expression​

The expression is evaluated in Javascript and the result is used to filter the item. If the evaluation result true-ish, the item is kept, otherwise it is filtered out.

The input variable is available in the expression and it refers to the current item in the input data. Input data is organized as an array of items.

Examples​

Keep items with price greater than 100​

input.price > 100;

Keep items with specific category​

input.category === "electronics";

Keep items with price between 50 and 200​

input.price >= 50 && input.price <= 200;

Keep items that are in stock​

input.stock > 0;

Keep items with specific tags​

input.tags && input.tags.includes("sale");

Keep items with non-empty description​

input.description && input.description.trim().length > 0;

Keep items with rating above 4 stars​

input.rating >= 4;

Keep items from specific brands​

["apple", "samsung", "sony"].includes(input.brand.toLowerCase());

Keep items with discount percentage​

input.discount && input.discount > 0;

Keep items with specific date range​

const itemDate = new Date(input.created_at);
const startDate = new Date("2024-01-01");
const endDate = new Date("2024-12-31");
itemDate >= startDate && itemDate <= endDate;

Keep items with specific text in name​

input.name && input.name.toLowerCase().includes("phone");

Keep items with multiple conditions​

input.price < 1000 && input.category === "electronics" && input.stock > 0;