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매일코딩/자바스크립트예제

10.자바스크립트 기초 문법 (노드메서드 2)

by 인생여희 2016. 12. 27.
반응형

마우스를 따라다니며 그림이 움직인다.

<html>

<head>

<style type="text/css">

img {

visibility:hidden;

position:absolute;

}

</style>

<script>

window.onload=function(){

document.onmousedown=function(){

imgTag.style.left=event.x;

imgTag.style.top=event.y;

imgTag.style.visibility="visible";

}

}

</script>

</head>

<body>

<img src="n.gif" id="imgTag"/>

</body>

</html>

 

 

 

2. document 구조 (배열)

<html>

<head>

<style type="text/css">

</style>

<script>

window.onload=function(){

window.document.forms[0].elements[0].value="abc";

window.document.forms[1].elements[0].value="def";

window.document.forms[1].elements[1].value="ghi";

}

</script>

</head>

<body>

<form>

<input type="text">

</form>

<form>

<input type="text">

<input type="text">

</form>

</body>

</html>

 

 

3. name으로 접근 가능하다

<html>

<head>

<style type="text/css">

</style>

<script>

window.onload=function(){

f1.t1.value="abc";

document.forms["f2"].elements["t2"].value="def";

}

</script>

</head>

<body>

<form name="f1">

<input type="text" name="t1">

</form>

<form name="f2">

<input type="text" name="t2">

<input type="text" name="t3">

</form>

</body>

</html>

 

# var 변수=document.getElementById("id이름");

-----------------------------------------------------------

 

# http://msdn.microsoft.com/ko-kr/library/d1et7k7c(v=vs.94).aspx

 

# 노드관련 메서드

 

document.createElement("태그명")

document.createTextNode("텍스트")

객체명.insertBefore(newChild,refChild)

객체명.replaceChild(newChild,oldChild)

객체명.removeChild(oldChild)

객체명.appendChild(newChild)

 

객체명.parentNode

객체명.childNodes

객체명.previousSibling

객체명.nextSibling

 

 

4. createTextNode홍길동이라는 글을 만들어서 body 태그에 붙였다.

 

<html>

<head>

<script>

window.onload=function(){

b.onclick=function(){

var a=document.createTextNode("홍길동");

bodyTag.appendChild(a);

}

}

</script>

</head>

<body id="bodyTag">

<input type="button" id="b">

</body>

</html>

 

 

5. createElement로 태그 만들어서 붙이기

<html>

<head>

<script>

window.onload=function(){

b.onclick=function(){

var inputTag=document.createElement("input");

inputTag.type="button";

inputTag.value="abc";

bodyTag.appendChild(inputTag);

}

}

</script>

</head>

<body id="bodyTag">

<input type="button" id="b">

</body>

</html>

 

 

6. createElement & appendChild

 

<html>

<head>

<script>

window.onload=function(){

b.onclick =function(){

var liTag=document.createElement("li");

liTag.innerHTML="dd";

olTag.appendChild(liTag);

}

}

</script>

</head>

<body>

<ol id="olTag">

<li>aa</li>

<li>bb</li>

<li>cc</li>

</ol>

<input type="button" id="b">

</body>

</html>

------------------------------------------------

 

7.

<html>

<head>

<script>

window.onload=function(){

b.onclick =function(){

var liTag=document.createElement("li");

var tNode=document.createTextNode("dd");

liTag.appendChild(tNode);

olTag.appendChild(liTag);

}

}

</script>

</head>

<body>

<ol id="olTag">

<li>aa</li>

<li>bb</li>

<li>cc</li>

</ol>

<input type="button" id="b">

</body>

</html>

 

 

 

첫번째유형

==========

<html>

<head>

<style type="text/css">

td {border:2px solid green; width:50px;

</style>

<script>

window.onload=function(){

buttonTag.onclick =function(){

var r=t1.value; var c=t2.value;

document.write("<table>");

for(var a=0,num=1; a<r; a++){

document.write("<tr>");

for(var b=0; b<c; b++){

document.write("<td>");

document.write(num++);

document.write("</td>");

}

document.write("</tr>");

}

document.write("</table>");

}

}

</script>

</head>

<body>

<input type="text" id="t1">

<input type="text" id="t2">

<input type="button" value="테이블" id="buttonTag">

<div id="result"></div>

</body>

</html>

 

두번째유형

==========

<html>

<head>

<style type="text/css">

td {border:2px solid green; width:50px;

</style>

<script>

window.onload=function(){

buttonTag.onclick =function(){

var r=t1.value; var c=t2.value;

var str="<table>";

for(var a=0,num=1; a<r; a++){

str+="<tr>";

for(var b=0; b<c; b++){

str+="<td>";

str+=num++;

str+="</td>";

}

str+="</tr>";

}

str+="</table>";

result.innerHTML=str;

}

}

</script>

</head>

<body>

<input type="text" id="t1">

<input type="text" id="t2">

<input type="button" value="테이블" id="buttonTag">

<div id="result"></div>

</body>

</html>

 

 

세번째유형

==========

<html>

<head>

<style type="text/css">

td {border:2px solid green; width:50px;

</style>

<script>

window.onload=function(){

buttonTag.onclick =function(){

var buffer=[];

var r=t1.value; var c=t2.value;

buffer.push("<table>");

for(var a=0,num=1; a<r; a++){

buffer.push("<tr>");

for(var b=0; b<c; b++){

buffer.push("<td>");

buffer.push(num++);

buffer.push("</td>");

}

buffer.push("</tr>");

}

buffer.push("</table>");

result.innerHTML=buffer.join("");

}

}

</script>

</head>

<body>

<input type="text" id="t1">

<input type="text" id="t2">

<input type="button" value="테이블" id="buttonTag">

<div id="result"></div>

 

</body>

</html>

 

 

네번째유형

=========

<html>

<head>

<style type="text/css">

td {border:2px solid green; width:50px;

</style>

<script>

window.onload=function(){

buttonTag.onclick =function(){

var r=t1.value; var c=t2.value;

var tableTag=document.createElement("table");

for(var a=0,num=1; a<r; a++){

var trTag=document.createElement("tr");

for(var b=0; b<c; b++){

var tdTag=document.createElement("td");

tdTag.innerHTML=num++;

trTag.appendChild(tdTag);

}

tableTag.appendChild(trTag);

}

result.appendChild(tableTag);

}

}

</script>

</head>

<body>

<input type="text" id="t1">

<input type="text" id="t2">

<input type="button" value="테이블" id="buttonTag">

<div id="result"></div>

</body>

</html>

 

 

 

8.

<html>

<head>

<style type="text/css">

td { border:2px solid navy; width:50px; }

</style>

<script>

window.onload=function(){

tdTag.onclick =function(){

var str="";

str+=this.nodeName+"<br/>";

str+=this.nodeType+"<br/>";

str+=this.previousSibling.nodeName+"<br/>";

str+=this.previousSibling.nodeType+"<br/>";

divTag.innerHTML=str;

 

// this.previousSibling.style.background="orange"; 적용안됨~

}

}

</script>

</head>

<body>

<table>

<tr>

<td>1</td>

<td>2</td>

<td id="tdTag">3</td>

<td>4</td>

</tr>

</table>

<div id="divTag"></div>

</body>

</html>

 

 

 

9. 줄칸을 입력 받아 테이블을 만들고 누른 칸 좌우로 색깔이 오렌지로 변경

<html>

<head>

<style type="text/css">

td {border:2px solid green; width:50px;

</style>

<script>

window.onload=function(){

buttonTag.onclick =function(){

var r=t1.value; var c=t2.value;

var tableTag=document.createElement("table");

for(var a=0,num=1; a<r; a++){

var trTag=document.createElement("tr");

for(var b=0; b<c; b++){

var tdTag=document.createElement("td");

tdTag.innerHTML=num++;

tdTag.onclick=clickFunc;

trTag.appendChild(tdTag);

}

tableTag.appendChild(trTag);

}

result.appendChild(tableTag);

}

}

function clickFunc(){

this.previousSibling.style.background="orange";

this.nextSibling.style.background="orange";

}

</script>

</head>

<body>

<input type="text" id="t1">

<input type="text" id="t2">

<input type="button" value="테이블" id="buttonTag">

<div id="result"></div>

</body>

</html>

 

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마우스를 따라다니며 그림이 움직인다.
 
<html>
 
<head>
 
<style type="text/css">
 
img {
 
visibility:hidden;
 
position:absolute;
 
}
 
</style>
 
<script>
 
window.onload=function(){
 
document.onmousedown=function(){
 
imgTag.style.left=event.x;
 
imgTag.style.top=event.y;
 
imgTag.style.visibility="visible";
 
}
 
}
 
</script>
 
</head>
 
<body>
 
<img src="n.gif" id="imgTag"/>
 
</body>
 
</html>
 
 
 
 
 
 
 
2. document 구조 (배열)
 
<html>
 
<head>
 
<style type="text/css">
 
</style>
 
<script>
 
window.onload=function(){
 
window.document.forms[0].elements[0].value="abc";
 
window.document.forms[1].elements[0].value="def";
 
window.document.forms[1].elements[1].value="ghi";
 
}
 
</script>
 
</head>
 
<body>
 
<form>
 
<input type="text">
 
</form>
 
<form>
 
<input type="text">
 
<input type="text">
 
</form>
 
</body>
 
</html>
 
 
 
 
 
3. name으로 접근 가능하다
 
<html>
 
<head>
 
<style type="text/css">
 
</style>
 
<script>
 
window.onload=function(){
 
f1.t1.value="abc";
 
document.forms["f2"].elements["t2"].value="def";
 
}
 
</script>
 
</head>
 
<body>
 
<form name="f1">
 
<input type="text" name="t1">
 
</form>
 
<form name="f2">
 
<input type="text" name="t2">
 
<input type="text" name="t3">
 
</form>
 
</body>
 
</html>
 
 
 
 
var 변수=document.getElementById("id이름");
 
-----------------------------------------------------------
 
 
 
# http://msdn.microsoft.com/ko-kr/library/d1et7k7c(v=vs.94).aspx
 
 
 
# 노드관련 메서드
 
 
 
document.createElement("태그명")
 
document.createTextNode("텍스트")
 
객체명.insertBefore(newChild,refChild)
 
객체명.replaceChild(newChild,oldChild)
 
객체명.removeChild(oldChild)
 
객체명.appendChild(newChild)
 
 
 
객체명.parentNode
 
객체명.childNodes
 
객체명.previousSibling
 
객체명.nextSibling
 
 
 
 
 
4. createTextNode로 홍길동이라는 글을 만들어서 body 태그에 붙였다.
 
 
 
<html>
 
<head>
 
<script>
 
window.onload=function(){
 
b.onclick=function(){
 
var a=document.createTextNode("홍길동");
 
bodyTag.appendChild(a);
 
}
 
}
 
</script>
 
</head>
 
<body id="bodyTag">
 
<input type="button" id="b">
 
</body>
 
</html>
 
 
 
 
 
5. createElement로 태그 만들어서 붙이기
 
<html>
 
<head>
 
<script>
 
window.onload=function(){
 
b.onclick=function(){
 
var inputTag=document.createElement("input");
 
inputTag.type="button";
 
inputTag.value="abc";
 
bodyTag.appendChild(inputTag);
 
}
 
}
 
</script>
 
</head>
 
<body id="bodyTag">
 
<input type="button" id="b">
 
</body>
 
</html>
 
 
 
 
 
6. createElement & appendChild
 
 
 
<html>
 
<head>
 
<script>
 
window.onload=function(){
 
b.onclick =function(){
 
var liTag=document.createElement("li");
 
liTag.innerHTML="dd";
 
olTag.appendChild(liTag);
 
}
 
}
 
</script>
 
</head>
 
<body>
 
<ol id="olTag">
 
<li>aa</li>
 
<li>bb</li>
 
<li>cc</li>
 
</ol>
 
<input type="button" id="b">
 
</body>
 
</html>
 
------------------------------------------------
 
 
 
7.
 
<html>
 
<head>
 
<script>
 
window.onload=function(){
 
b.onclick =function(){
 
var liTag=document.createElement("li");
 
var tNode=document.createTextNode("dd");
 
liTag.appendChild(tNode);
 
olTag.appendChild(liTag);
 
}
 
}
 
</script>
 
</head>
 
<body>
 
<ol id="olTag">
 
<li>aa</li>
 
<li>bb</li>
 
<li>cc</li>
 
</ol>
 
<input type="button" id="b">
 
</body>
 
</html>
 
 
 
 
 
 
 
첫번째유형
 
==========
 
<html>
 
<head>
 
<style type="text/css">
 
td {border:2px solid green; width:50px;
 
</style>
 
<script>
 
window.onload=function(){
 
buttonTag.onclick =function(){
 
var r=t1.value; var c=t2.value;
 
document.write("<table>");
 
for(var a=0,num=1; a<r; a++){
 
document.write("<tr>");
 
for(var b=0; b<c; b++){
 
document.write("<td>");
 
document.write(num++);
 
document.write("</td>");
 
}
 
document.write("</tr>");
 
}
 
document.write("</table>");
 
}
 
}
 
</script>
 
</head>
 
<body>
 
<input type="text" id="t1">
 
<input type="text" id="t2">
 
<input type="button" value="테이블" id="buttonTag">
 
<div id="result"></div>
 
</body>
 
</html>
 
 
 
두번째유형
 
==========
 
<html>
 
<head>
 
<style type="text/css">
 
td {border:2px solid green; width:50px;
 
</style>
 
<script>
 
window.onload=function(){
 
buttonTag.onclick =function(){
 
var r=t1.value; var c=t2.value;
 
var str="<table>";
 
for(var a=0,num=1; a<r; a++){
 
str+="<tr>";
 
for(var b=0; b<c; b++){
 
str+="<td>";
 
str+=num++;
 
str+="</td>";
 
}
 
str+="</tr>";
 
}
 
str+="</table>";
 
result.innerHTML=str;
 
}
 
}
 
</script>
 
</head>
 
<body>
 
<input type="text" id="t1">
 
<input type="text" id="t2">
 
<input type="button" value="테이블" id="buttonTag">
 
<div id="result"></div>
 
</body>
 
</html>
 
 
 
 
 
세번째유형
 
==========
 
<html>
 
<head>
 
<style type="text/css">
 
td {border:2px solid green; width:50px;
 
</style>
 
<script>
 
window.onload=function(){
 
buttonTag.onclick =function(){
 
var buffer=[];
 
var r=t1.value; var c=t2.value;
 
buffer.push("<table>");
 
for(var a=0,num=1; a<r; a++){
 
buffer.push("<tr>");
 
for(var b=0; b<c; b++){
 
buffer.push("<td>");
 
buffer.push(num++);
 
buffer.push("</td>");
 
}
 
buffer.push("</tr>");
 
}
 
buffer.push("</table>");
 
result.innerHTML=buffer.join("");
 
}
 
}
 
</script>
 
</head>
 
<body>
 
<input type="text" id="t1">
 
<input type="text" id="t2">
 
<input type="button" value="테이블" id="buttonTag">
 
<div id="result"></div>
 
 
 
</body>
 
</html>
 
 
 
 
 
네번째유형
 
=========
 
<html>
 
<head>
 
<style type="text/css">
 
td {border:2px solid green; width:50px;
 
</style>
 
<script>
 
window.onload=function(){
 
buttonTag.onclick =function(){
 
var r=t1.value; var c=t2.value;
 
var tableTag=document.createElement("table");
 
for(var a=0,num=1; a<r; a++){
 
var trTag=document.createElement("tr");
 
for(var b=0; b<c; b++){
 
var tdTag=document.createElement("td");
 
tdTag.innerHTML=num++;
 
trTag.appendChild(tdTag);
 
}
 
tableTag.appendChild(trTag);
 
}
 
result.appendChild(tableTag);
 
}
 
}
 
</script>
 
</head>
 
<body>
 
<input type="text" id="t1">
 
<input type="text" id="t2">
 
<input type="button" value="테이블" id="buttonTag">
 
<div id="result"></div>
 
</body>
 
</html>
 
 
 
 
 
 
 
8.
 
<html>
 
<head>
 
<style type="text/css">
 
td { border:2px solid navy; width:50px; }
 
</style>
 
<script>
 
window.onload=function(){
 
tdTag.onclick =function(){
 
var str="";
 
str+=this.nodeName+"<br/>";
 
str+=this.nodeType+"<br/>";
 
str+=this.previousSibling.nodeName+"<br/>";
 
str+=this.previousSibling.nodeType+"<br/>";
 
divTag.innerHTML=str;
 
 
 
// this.previousSibling.style.background="orange"; 적용안됨~
 
}
 
}
 
</script>
 
</head>
 
<body>
 
<table>
 
<tr>
 
<td>1</td>
 
<td>2</td>
 
<td id="tdTag">3</td>
 
<td>4</td>
 
</tr>
 
</table>
 
<div id="divTag"></div>
 
</body>
 
</html>
 
 
 
 
 
 
 
9. 줄칸을 입력 받아 테이블을 만들고 누른 칸 좌우로 색깔이 오렌지로 변경
 
<html>
 
<head>
 
<style type="text/css">
 
td {border:2px solid green; width:50px;
 
</style>
 
<script>
 
window.onload=function(){
 
buttonTag.onclick =function(){
 
var r=t1.value; var c=t2.value;
 
var tableTag=document.createElement("table");
 
for(var a=0,num=1; a<r; a++){
 
var trTag=document.createElement("tr");
 
for(var b=0; b<c; b++){
 
var tdTag=document.createElement("td");
 
tdTag.innerHTML=num++;
 
tdTag.onclick=clickFunc;
 
trTag.appendChild(tdTag);
 
}
 
tableTag.appendChild(trTag);
 
}
 
result.appendChild(tableTag);
 
}
 
}
 
function clickFunc(){
 
this.previousSibling.style.background="orange";
 
this.nextSibling.style.background="orange";
 
}
 
</script>
 
</head>
 
<body>
 
<input type="text" id="t1">
 
<input type="text" id="t2">
 
<input type="button" value="테이블" id="buttonTag">
 
<div id="result"></div>
 
</body>
 
</html>
cs


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