diff --git a/docs/guide.md b/docs/guide.md index ec07fe6..f93302f 100644 --- a/docs/guide.md +++ b/docs/guide.md @@ -8,13 +8,11 @@ `X-Response-Time` header field the middleware would look like the following: ```js -function responseTime(next){ - return function *(){ - var start = new Date; - yield next; - var ms = new Date - start; - this.set('X-Response-Time', ms + 'ms'); - } +function *responseTime(next){ + var start = new Date; + yield next; + var ms = new Date - start; + this.set('X-Response-Time', ms + 'ms'); } app.use(responseTime); @@ -23,13 +21,11 @@ app.use(responseTime); Here's another way to write the same thing, inline: ```js -app.use(function(next){ - return function *(){ - var start = new Date; - yield next; - var ms = new Date - start; - this.set('X-Response-Time', ms + 'ms'); - } +app.use(function *(next){ + var start = new Date; + yield next; + var ms = new Date - start; + this.set('X-Response-Time', ms + 'ms'); }); ``` @@ -63,19 +59,8 @@ to this behaviour. For example this would be fine: ```js -app.use(function(){ - return function *response(){ - if ('/' != this.url) return; - this.body = 'Hello World'; - } -}); -``` - - It's important to note that not all middleware will need to conform, the best example of this - is a router, which are typically always acting as end-points, or downstream middleware: - -````js -app.use(get('/', function *(){ +app.use(function *response(){ + if ('/' != this.url) return; this.body = 'Hello World'; }); ``` @@ -101,16 +86,14 @@ app.use(get('/', function *(){ function logger(format){ format = format || ':method ":url"'; - return function(next){ - return function *(){ - var str = format - .replace(':method', this.method) - .replace(':url', this.url); + return function *(next){ + var str = format + .replace(':method', this.method) + .replace(':url', this.url); - console.log(str); - - yield next; - } + console.log(str); + + yield next; } } @@ -125,10 +108,8 @@ app.use(logger(':method :url')); ```js function logger(format){ - return function(next){ - return function *logger(){ - // ^-- name this guy - } + return function *logger(next){ + } } ``` @@ -143,17 +124,15 @@ function logger(format){ ```js var fs = require('co-fs'); -app.use(function(){ - return function *(){ - var paths = yield fs.readdir('docs'); +app.use(function *(){ + var paths = yield fs.readdir('docs'); - var files = yield paths.map(function(path){ - return fs.readFile('docs/' + path, 'utf8'); - }); + var files = yield paths.map(function(path){ + return fs.readFile('docs/' + path, 'utf8'); + }); - this.type = 'markdown'; - this.body = files.join(''); - } + this.type = 'markdown'; + this.body = files.join(''); }); ```