সারাংশ: DOM ব্যবহার পদ্ধতি

• document.getElementById(id)
• document.getElementsByClassName(className)
• document.getElementsByTagName(tagName)
• document.querySelector(cssSelector)
• document.querySelectorAll(cssSelector)

var salsMotto = document.getElementById("salsMotto");
salsMotto.innerHTML = "Math is cool";

var teamMembers = document.getElementsByClassName("team-member");
for (var i = 0; i < teamMembers.length; i++) {
   console.log(teamMembers[i].innerHTML);
}

var teamMembers = document.querySelectorAll(".team-member");
for (var i = 0; i < teamMembers.length; i++) {
   console.log(teamMembers[i].innerHTML);
}

// ID সম্বলিত 
var salsMotto = document.getElementById("salsMotto");
// উপাদানগুলোর মধ্য থেকে span খুঁজে বের করা:
var mottoWords = salsMotto.getElementsByTagName("span");
// কতগুলো span আছে তার হিসাব
console.log(mottoWords.length);

• firstElementChild
• lastElementChild
• nextElementChild/nextElementSibling
• previousElementChild/previousElementSibling
• childNodes
• childElementCount

var salsMotto = document.getElementById("salsMotto");
for (var i = 0; i < salsMotto.childNodes.length; i++) {
   console.log(salsMotto.childNodes[i]);
}