var ps = document.getElementsByTagName("p") for(let i in ps){ ps[i].setAttribute("style","color:red;") }
var red = document.querySelectorAll('p'); for(var i = 0 ;i <red.length;i++){ red[i].style.color = 'red' }
var ps = document.getElementByTagName('p') for(let i of ps){ i.style.color = 'red }
let dom = document.getElementsByTagName('p') Array.from(dom).forEach((e)=> e.style.color = 'red')
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