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Apr 28th, 2017
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  1. function zamichat(selektor) {
  2. let obrazky = [];
  3. document.querySelectorAll(selektor).forEach(elem => obrazky.push(elem.src));
  4. zamichatPole(obrazky);
  5. document.querySelectorAll(selektor).forEach((elem, i) => elem.src = obrazky[i]);
  6. }
  7.  
  8. function zamichatPole(pole) {
  9. for (let odkud = pole.length - 1; odkud >= 0; odkud--) {
  10. let kam = Math.floor(Math.random() * (odkud + 1));
  11. [pole[odkud], pole[kam]] = [pole[kam], pole[odkud]];
  12. }
  13. }
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