@amcharts/amcharts5/.internal/core/util/Throttler.js

amCharts 5

export class Throttler {
    constructor(fn) {
        this._ready = true;
        this._pending = false;
        this._fn = fn;
    }
    run() {
        if (this._ready) {
            this._ready = false;
            this._pending = false;
            requestAnimationFrame(() => {
                this._ready = true;
                if (this._pending) {
                    this.run();
                }
            });
            this._fn();
        }
        else {
            this._pending = true;
        }
    }
}
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