ADD JSDoc

and add isDir from resolveInclude().
and typed clearCache().

types/ejs/index.d.ts

@@ -2,45 +2,124 @@
 // Project: http://ejs.co/
 // Definitions by: Ben Liddicott <https://github.com/benliddicott>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.1
 
 export interface Data {
     [name: string]: any;
 }
+/**
+ * EJS template function cache. This can be a LRU object from lru-cache NPM
+ * module. By default, it is {@link module:utils.cache}, a simple in-process
+ * cache that grows continuously.
+ */
 export let cache: Cache;
+/**
+ * Name of the object containing the locals.
+ *
+ * This variable is overridden by {@link Options}`.localsName` if it is not
+ * `undefined`.
+ */
 export let localsName: string;
-export function resolveInclude(name: string, filename: string): string;
+/**
+ * Get the path to the included file from the parent file path and the
+ * specified path.
+ */
+export function resolveInclude(name: string, filename: string, isDir: boolean): string;
+/**
+ * Compile the given `str` of ejs into a template function.
+ */
 export function compile(template: string, opts?: Options): (TemplateFunction);
+/**
+ * Render the given `template` of ejs.
+ *
+ * If you would like to include options but not data, you need to explicitly
+ * call this function with `data` being an empty object or `null`.
+ */
 export function render(template: string, data?: Data, opts?: Options): string;
 
 export type RenderFileCallback<T> = (err: Error, str?: string) => T;
+
+/**
+ * Render an EJS file at the given `path` and callback `cb(err, str)`.
+ *
+ * If you would like to include options but not data, you need to explicitly
+ * call this function with `data` being an empty object or `null`.
+ */
 export function renderFile<T>(path: string, cb: RenderFileCallback<T>): T;
 export function renderFile<T>(path: string, data: Data, cb: RenderFileCallback<T>): T;
 export function renderFile<T>(path: string, data: Data, opts: Options, cb: RenderFileCallback<T>): T;
 
-export function clearCache(): any;
+/**
+ * Clear intermediate JavaScript cache. Calls {@link Cache#reset}.
+ */
+export function clearCache(): void;
 
 export type TemplateFunction = (data: Data) => any;
 export interface Options {
+    /** Compiled functions are cached, requires `filename` */
     cache?: boolean;
+    /**
+     * The name of the file being rendered. Not required if you are using `renderFile()`.
+     * Used by `cache` to key caches, and for includes.
+     */
     filename?: string;
+    /** Set project root for includes with an absolute path (/file.ejs). */
     root?: string;
+    /** Function execution context */
     context?: any;
+    /** When `false` no debug instrumentation is compiled */
     compileDebug?: boolean;
+    /** When `true`, compiles a function that can be rendered in the browser without needing to load the EJS Runtime (ejs.min.js). */
     client?: boolean;
+    /** Character to use with angle brackets for open/close */
     delimiter?: string;
+    /** Output generated function body */
     debug?: boolean;
+    /** When set to `true`, generated function is in strict mode */
     strict?: boolean;
+    /**
+     * Whether or not to use `with() {}` constructs.
+     * If `false` then the locals will be stored in the `locals` object. Set to `false` in strict mode.
+     */
     _with?: boolean;
+    /** Name to use for the object storing local variables when not using `with` Defaults to `locals` */
     localsName?: string;
+    /**
+     * Remove all safe-to-remove whitespace, including leading and trailing whitespace.
+     * It also enables a safer version of `-%>` line slurping for all scriptlet tags (it does not strip new lines of tags in the middle of a line).
+     */
     rmWhitespace?: boolean;
+    /**
+     * The escaping function used with `<%=` construct.
+     * It is used in rendering and is `.toString()`ed in the generation of client functions.
+     * (By default escapes XML).
+     */
     escape?(str: string): string;
 }
 
 export function escapeRegexChars(s: string): string;
+/**
+ * Escape characters reserved in XML.
+ *
+ * This is simply an export of {@link module:utils.escapeXML}.
+ *
+ * If `markup` is `undefined` or `null`, the empty string is returned.
+ */
 export function escapeXML(markup: string): string;
 export interface Cache {
-    _data: { [name: string]: any };
-    set(key: string, val: any): any;
-    get(key: string): any;
+    _data: { [name: string]: TemplateFunction; };
+    set(key: string, val: TemplateFunction): TemplateFunction;
+    get(key: string): TemplateFunction;
 }
 export let delimiter: string;
+
+/**
+ * Custom file loader. Useful for template preprocessing or restricting access
+ * to a certain part of the filesystem.
+ */
+export function fileLoader(filePath: string): string;
+
+/**
+ * Name for detection of EJS.
+ */
+export const name = "ejs";