36 lines
646 B
TypeScript
36 lines
646 B
TypeScript
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import * as readline from 'readline';
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/**
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* Indicator
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*/
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export default class {
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private clock: NodeJS.Timer;
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constructor(text: string) {
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let i = 0; // Dots counter
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draw();
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this.clock = setInterval(draw, 300);
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function draw(): void {
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cll();
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i = (i + 1) % 4;
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const dots = new Array(i + 1).join('.');
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process.stdout.write(text + dots); // Write text
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}
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}
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public end(): void {
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clearInterval(this.clock);
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cll();
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}
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}
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/**
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* Clear current line
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*/
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function cll(): void {
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readline.clearLine(process.stdout, 0); // Clear current text
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readline.cursorTo(process.stdout, 0, null); // Move cursor to the head of line
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}
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