75 lines
2.4 KiB
HTML
75 lines
2.4 KiB
HTML
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.1/dist/css/bootstrap.min.css" rel="stylesheet">
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<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.1/dist/js/bootstrap.bundle.min.js"></script>
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<title>Document</title>
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</head>
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<body>
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<script>
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function dragabb(number){
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let count = 0;
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for(let elem of tomb){
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if(elem.termekar > number){
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count++;
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}
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}
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return count;
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}
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function fuzo(){
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let szoveg = "";
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for (let elem of tomb) {
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szoveg += elem.termeknev + "_";
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}
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/*tomb.forEach(elem => {
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szoveg += elem.termeknev + "_";
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});*/
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szoveg = szoveg.substring(0, szoveg.length - 1);
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return szoveg;
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}
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let van_benne = (neve) => {
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for (let elem of tomb) {
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if(elem.termeknev == neve){
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return true;
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}
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}
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return false;
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}
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let atlagar = () => {
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let price = 0;
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for (let elem of tomb) {
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price += elem.termekar;
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}
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price = price / tomb.length;
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return price;
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}
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console.log("Hello world!");
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let tomb = [ //json adatszerkezet
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{"termeknev":"kenyér", "termekar": 800},
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{"termeknev":"kifli", "termekar": 500},
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{"termeknev":"perec", "termekar": 200},
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{"termeknev":"zsemle", "termekar": 100},
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{"termeknev":"keksz", "termekar": 60}
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];
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console.log(tomb);
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console.log(tomb[4].termekar);
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console.log(dragabb(50));
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console.log(fuzo());
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if(van_benne("kenyér")){
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console.log("van benne");
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}else{
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console.log("nincs benne");
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}
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console.log("atlag: " + atlagar());
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</script>
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</body>
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</html>
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