ES6 异步操作和Async函数(6)
时间:2021-06-24 13:06 来源:汽车之家 作者:阿虎 点击:次
| Generator var g = gen();g.next().value.then( function ( data ) { g.next(data).value.then( function ( data ) {g.next(data); });}); then function run ( gen ) { var g = gen(); function next ( data ) { var result = g.next(data); if (result.done) return result.value;result.value.then( function ( data ) {next(data);}); }next();}run(gen); Generatornext co co coGenerator Promise function co ( gen ) { var ctx = this ; return new Promise ( function ( resolve， done: false } return asyncIterator.next();}).then(iterResult2 = { console .log(iterResult2); // { value: b， generator。
or object， function ( err， {}]; // docs.forEach( async function ( doc ) { await db.post(doc); });} db.postfor async function dbFuc ( db ) { let docs = [{}， animations ) { return spawn( function *() { var ret = null ; try { for ( var anim of animations) {ret = yield anim(elem);}} catch (e) { /* */ } return ret; });} GeneratorPromisespawnGeneratorspawnPromiseyieldPromise Async async function chainAnimationsAsync ( elem。 done: true } nextvaluex + 23next2 Generator y value 2y Generator function * gen ( x ) { try { var y = yield x + 2 ; } catch (e){ console .log(e); } return y;} var g = gen( 1 );g.next();g.throw( ); // Generatorthrowtry ...catch Generator var fetch = require ( node-fetch ); function * gen () { var url = https://api.github.com/users/github ; var result = yield fetch(url); console .log(result.bio);} GeneratorJSONyield var g = gen(); var result = g.next();result.value.then( function ( data ) { return data.json();}).then( function ( data ) { g.next(data);}); Generatornext FetchPromisethennext (责任编辑：admin) |