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| function sleep(ms) { | |
| return new Promise(resolve => setTimeout(resolve, ms)); | |
| }; | |
| async function sequence() { | |
| let chkJobs = []; | |
| for (let i = 1, max = 10; i < max; i++) { | |
| let intRand = Math.floor((Math.random() * 5) + 1) * 1000; | |
| await sleep(intRand); | |
| console.log('[sequence] %s,delay %sms', i, intRand); | |
| } | |
| console.log('AllDone'); | |
| } | |
| sequence(); | |
| // === Result === | |
| // [sequence] 1,delay 4000ms | |
| // [sequence] 2,delay 1000ms | |
| // [sequence] 3,delay 5000ms | |
| // [sequence] 4,delay 5000ms | |
| // [sequence] 5,delay 3000ms | |
| // [sequence] 6,delay 3000ms | |
| // [sequence] 7,delay 4000ms | |
| // [sequence] 8,delay 4000ms | |
| // [sequence] 9,delay 5000ms | |
| // AllDone | |
| // [Finished in 34.3s] | |
| // === Result === |
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| function sleep(ms) { | |
| return new Promise(resolve => setTimeout(resolve, ms)); | |
| }; | |
| function parallel() { | |
| let chkJobs = []; | |
| for (let i = 1, max = 10; i < max; i++) { | |
| let intRand = Math.floor((Math.random() * 10) + 1) * 1000; | |
| chkJobs.push(new Promise(async(resolve, reject) => { | |
| await sleep(intRand); | |
| console.log('[parallel] %s,delay %sms', i, intRand); | |
| resolve(i); | |
| })); | |
| } | |
| Promise.all(chkJobs).then(values => { | |
| console.log('[parallel] AllDone'); | |
| }); | |
| } | |
| parallel(); | |
| // === Result === | |
| // [parallel] 2,delay 1000ms | |
| // [parallel] 6,delay 2000ms | |
| // [parallel] 4,delay 3000ms | |
| // [parallel] 1,delay 4000ms | |
| // [parallel] 7,delay 5000ms | |
| // [parallel] 8,delay 7000ms | |
| // [parallel] 3,delay 8000ms | |
| // [parallel] 5,delay 8000ms | |
| // [parallel] 9,delay 8000ms | |
| // [parallel] AllDone | |
| // [Finished in 8.2s] | |
| // === Result === |
