TypeScript code snippet – How to add id in array javascript?
let data = [{ color: "red", value: "#f00" }, { color: "green", value: "#0f0" }, { color: "blue", value: "#00f" }, { color: "cyan", value: "#0ff" }, { color: "magenta", value: "#f0f" }, { color: "green", value: "#ff0" }, { color: "black", value: "#000" }]; data.forEach((o, i) => o.id = i + 1); console.log(data);