script.js

来自「lynda.com 2007年出品的javascript essential t」· JavaScript 代码 · 共 35 行

JS
35
字号
window.onload = initAll;function initAll() {	document.getElementsByTagName("form")[0].onsubmit = addNode;	document.getElementById("deleteNode").onclick = delNode;}function addNode() {	var inText = document.getElementById("textArea").value;	var newText = document.createTextNode(inText);	var newGraf = document.createElement("p");	newGraf.appendChild(newText);	var docBody = document.getElementsByTagName("body")[0];	docBody.appendChild(newGraf);	return false;}function delNode() {	var allGrafs = document.getElementsByTagName("p");		if (allGrafs.length > 1) {		var lastGraf = allGrafs.item(allGrafs.length-1);		var docBody = document.getElementsByTagName("body")[0];		var removed = docBody.removeChild(lastGraf);	}	else {		alert("Nothing to remove!");	}	return false;}

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