On Wednesday, November 27, 2013, Michael J. Ryan wrote: > of course you could just as easy have done... > >
Sure, if I was trying to illustrate something that wasn't the thing I was trying to illustrate. Or if I wanted to confuse my point with something questionably relevant. Rick > //foo module ... > var foo = {...} > module.exports = foo; > > //app.js > var foo = require(‘foo’) > > all require(‘foo’) with the same library reference will be the same... > > > the only thing global does is allow multiple versions of libraries not to > stomp on eachother... > > //bar module – first to register wins > module.exports = global.__bar__ = global.__bar__ || initModule(); > > function initModule() { > return {\*...some object...*\}; > } > ... > > which can also be valuable > > > *From:* Rick Waldron <javascript:_e({}, 'cvml', > 'waldron.r...@gmail.com');> > *Sent:* Wednesday, November 27, 2013 11:36 AM > *To:* nodejs@googlegroups.com <javascript:_e({}, 'cvml', > 'nodejs@googlegroups.com');> > *Subject:* Re: [nodejs] how to create a singleton > > > > On Wednesday, November 27, 2013, Ryan Schmidt wrote: > >> >> On Nov 26, 2013, at 23:50, dhtml wrote: >> >> > On Thursday, November 21, 2013 7:13:48 AM UTC-8, Gregg Caines wrote: >> > >> >> So how do you achieve the same effect in javascript? In the browser, >> you have globals. >> > >> > The global object has nothing to do with web browsers. >> >> Sure it does. In browsers you can reference a global easily from any >> file. In node, each file gets its own namespace, so you can’t. > > > This is simply not true. By default, module code has access to the > `global` object reference, which allows: > > // module.js > global.foo = 1; > > > // program.js > require("./module.js"); > > console.log(foo); // 1 > > > There is no implicit global environment bindings created for top level var > declarations or function declarations because the source body of module > code is wrapped in an IIFE: > https://github.com/joyent/node/blob/master/src/node.js#L1007-L1014. Which > is not the same as a unique "namespace" and certainly not the same as > having a fresh realm-like global object. > > Rick > > >> >> -- > -- > Job Board: http://jobs.nodejs.org/ > Posting guidelines: > https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines > You received this message because you are subscribed to the Google > Groups "nodejs" group. > To post to this group, send email to > nodejs@googlegroups.com<javascript:_e({}, 'cvml', 'nodejs@googlegroups.com');> > To unsubscribe from this group, send email to > nodejs+unsubscr...@googlegroups.com <javascript:_e({}, 'cvml', > 'nodejs%2bunsubscr...@googlegroups.com');> > For more options, visit this group at > http://groups.google.com/group/nodejs?hl=en?hl=en > > --- > You received this message because you are subscribed to the Google Groups > "nodejs" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to nodejs+unsubscr...@googlegroups.com <javascript:_e({}, 'cvml', > 'nodejs%2bunsubscr...@googlegroups.com');>. > For more options, visit https://groups.google.com/groups/opt_out. > > -- > -- > Job Board: http://jobs.nodejs.org/ > Posting guidelines: > https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines > You received this message because you are subscribed to the Google > Groups "nodejs" group. > To post to this group, send email to > nodejs@googlegroups.com<javascript:_e({}, 'cvml', 'nodejs@googlegroups.com');> > To unsubscribe from this group, send email to > nodejs+unsubscr...@googlegroups.com <javascript:_e({}, 'cvml', > 'nodejs%2bunsubscr...@googlegroups.com');> > For more options, visit this group at > http://groups.google.com/group/nodejs?hl=en?hl=en > > --- > You received this message because you are subscribed to the Google Groups > "nodejs" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to nodejs+unsubscr...@googlegroups.com <javascript:_e({}, 'cvml', > 'nodejs%2bunsubscr...@googlegroups.com');>. > For more options, visit https://groups.google.com/groups/opt_out. > -- -- Job Board: http://jobs.nodejs.org/ Posting guidelines: https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines You received this message because you are subscribed to the Google Groups "nodejs" group. To post to this group, send email to nodejs@googlegroups.com To unsubscribe from this group, send email to nodejs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/nodejs?hl=en?hl=en --- You received this message because you are subscribed to the Google Groups "nodejs" group. To unsubscribe from this group and stop receiving emails from it, send an email to nodejs+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.