Function formatPath

frontend/util/ijson.ts:11–30

(path: PathType)

const simplePathStrRe = /^[a-zA-Z_][a-zA-Z0-9_]*$/;

function formatPath(path: PathType): string {
    if (path.length == 0) {
        return "$";
    }
    let pathStr = "$";
    for (const pathPart of path) {
        if (typeof pathPart === "string") {
            if (simplePathStrRe.test(pathPart)) {
                pathStr += "." + pathPart;
            } else {
                pathStr += "[" + JSON.stringify(pathPart) + "]";
            }
        } else if (typeof pathPart === "number") {
            pathStr += "[" + pathPart + "]";
        } else {
            pathStr += ".*";
        }
    }
    return pathStr;
}

function isArray(obj: any): boolean {
    return obj != null && Array.isArray(obj);