document.onkeydown = (e) => {
        if (e.key == 123) {e.preventDefault();}
        if (e.ctrlKey && e.shiftKey && e.key == 'I') {e.preventDefault();}
        //if (e.ctrlKey && e.shiftKey && e.key == 'C') {e.preventDefault();}
        if (e.ctrlKey && e.shiftKey && e.key == 'J') {e.preventDefault();}
        if (e.ctrlKey && e.key == 'U') {e.preventDefault();}
        //if (e.ctrlKey && e.key == 'u') {e.preventDefault();}
    };
    function capfirst(str) {
        return str.toLowerCase().split(' ').map(function(word) {
        return word.charAt(0).toUpperCase() + word.slice(1);
        }).join(' ');
    }
    function capEachWord(kalimat, lowercase=true, a_spasi='_', b_spasi=' ') {
        const words = lowercase==false ? kalimat : kalimat.toLowerCase();
        const kataArray = words.split(a_spasi);
        const kataKapitalArray = kataArray.map(ka=>{
            if (ka.length === 0) { return '';}
            return ka.charAt(0).toUpperCase() + ka.slice(1);
        });
        return kataKapitalArray.join(b_spasi);
    }
    function truncate(text, maxLength) {
        if (text.length > maxLength) {
            return text.substring(0, maxLength) + "...";
        }
        return text
    }
    function getTextWidth(text, font=false) {
        const canvas = document.createElement('canvas');
        const context = canvas.getContext('2d');
        context.font = Boolean(font)==true ? font : ('400 ' + (4 * 3.5) + 'px Roboto');
        const metrics = context.measureText(text);
        return metrics.width;
    }
    delete history.pushState;
    for (let i = 0; i <= 30; i++) {
        history.pushState({ page: i }, "/", "");
    }
    // history.pushState({ page: 1 }, "", "");
    // history.back();
    // window.history.forward();