0fedb57cb0
Clearing array with setting length to 0 replaced with [] for being short and marginally efficient. For reference: [] is turned into a sequence of around 15 machine instructions on x64 (if bump pointer allocation succeeds), whereas a.length=0 is a C++ runtime function call, which requires 10-100x as many instructions. Benedikt Meurer PR Close #20395
27 lines
659 B
TypeScript
27 lines
659 B
TypeScript
import { Injectable } from '@angular/core';
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@Injectable()
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export class LoggerService {
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logs: string[] = [];
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prevMsg = '';
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prevMsgCount = 1;
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log(msg: string) {
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if (msg === this.prevMsg) {
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// Repeat message; update last log entry with count.
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this.logs[this.logs.length - 1] = msg + ` (${this.prevMsgCount += 1}x)`;
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} else {
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// New message; log it.
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this.prevMsg = msg;
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this.prevMsgCount = 1;
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this.logs.push(msg);
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}
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}
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clear() { this.logs = []; }
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// schedules a view refresh to ensure display catches up
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tick() { this.tick_then(() => { }); }
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tick_then(fn: () => any) { setTimeout(fn, 0); }
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}
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