This commit is contained in:
Ilya Kantor 2016-11-19 00:13:08 +03:00
parent b1f0cfc5b2
commit 63f55dc65d
137 changed files with 1287 additions and 1651 deletions

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@ -0,0 +1,34 @@
class Clock {
constructor({ template }) {
this._template = template;
}
_render() {
let date = new Date();
let hours = date.getHours();
if (hours < 10) hours = '0' + hours;
let mins = date.getMinutes();
if (mins < 10) min = '0' + mins;
let secs = date.getSeconds();
if (secs < 10) secs = '0' + secs;
let output = this._template
.replace('h', hours)
.replace('m', mins)
.replace('s', secs);
console.log(output);
}
stop() {
clearInterval(this._timer);
}
start() {
this._render();
this._timer = setInterval(() => this._render(), 1000);
}
}

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class ExtendedClock extends Clock {
constructor(options) {
super(options);
let { precision=1000 } = options;
this._precision = precision;
}
start() {
this._render();
this._timer = setInterval(() => this._render(), this._precision);
}
};

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<!DOCTYPE HTML>
<html>
<head>
<title>Console clock</title>
</head>
<body>
<script src="clock.js"></script>
<script src="extended-clock.js"></script>
<script>
let lowResolutionClock = new ExtendedClock({
template: 'h:m:s',
precision: 10000
});
lowResolutionClock.start();
</script>
</body>
</html>