Commit 4df2552

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Add metalog example

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	`1`	`+!.gitignore`

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	`1`	`+'use strict';`
	`2`	`+`
	`3`	`+const metalog = require('metalog');`
	`4`	`+`
	`5`	`+const log = metalog({`
	`6`	`+ path: './log',`
	`7`	`+ node: 'S1N1',`
	`8`	`+ writeInterval: 3000,`
	`9`	`+ writeBuffer: 64 * 1024,`
	`10`	`+ keepDays: 5,`
	`11`	`+ toStdout: [],`
	`12`	`+}).bind('app1');`
	`13`	`+`
	`14`	`+log.logger.on('error', err => {`
	`15`	`+ console.log('Error');`
	`16`	`+ console.error(err);`
	`17`	`+ process.exit(1);`
	`18`	`+});`
	`19`	`+`
	`20`	`+log.logger.on('open', () => {`
	`21`	`+ console.log('Opened');`
	`22`	`+ log.system('System test log message');`
	`23`	`+ log.fatal('Fatal test log message');`
	`24`	`+ log.error('Error test log message');`
	`25`	`+ log.warn('Warning test log message');`
	`26`	`+ log.info('Info test log message');`
	`27`	`+ log.debug('Debug test log message');`
	`28`	`+ log.slow('Slow test log message');`
	`29`	`+ log.db('Database test log message');`
	`30`	`+`
	`31`	`+ const begin = process.hrtime.bigint();`
	`32`	`+ for (let i = 0; i < 1000000; i++) {`
	`33`	`+ log.info('Write more then 60Mb logs, line: ' + i);`
	`34`	`+ }`
	`35`	`+ log.logger.close();`
	`36`	`+ log.logger.on('close', () => {`
	`37`	`+ const end = process.hrtime.bigint();`
	`38`	`+ const time = (end - begin) / 1000000n;`
	`39`	+ console.log(`Time: ${time} milliseconds`);
	`40`	`+ });`
	`41`	`+});`

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