Javascript 如何修改此脚本以根据ID使用不同的替换数组？
我在下面有这个脚本。我想做的是修改它，使它根据document.getElementById'something'的内容使用不同的替换值集 因此，“Headline”将使用与“Body”等不同的替换字符集 提前谢谢Javascript 如何修改此脚本以根据ID使用不同的替换数组？,javascript,jquery,Javascript,Jquery,我在下面有这个脚本。我想做的是修改它，使它根据document.getElementById'something'的内容使用不同的替换值集 因此，“Headline”将使用与“Body”等不同的替换字符集 提前谢谢 function DeGlyph(element) { // List of replacement rules. replacements= [ //Single Quote Characters ['\u0027', '\''],
function DeGlyph(element) {
// List of replacement rules.
replacements= [
//Single Quote Characters
['\u0027', '\''],
['\u2018', '\''],
['\u2019', '\''],
['\u201A', '\''],
['\u201B', '\''],
//Double Quote Characters
['\u0022', '"'],
['\u201C', '"'],
['\u201D', '"'],
['\u201E', '"'],
['\u201F', '"'],
['\u301D', '"'],
['\u301E', '"'],
['\u301F', '"'],
//Other Characters
['\u00BC', '1/4'],
['\u00BD', '1/2'],
['\u00BE', '3/4'],
['\u2122', '<sup>TM</sup>'],
['\u2013', '-'],
['\u2014', '—'],
['\u00A9', '©'],
['\u00AE', '®']
];
// Only attempt to use replacer behaviour if we can retain the cursor
// position. Setting value by default moves the cursor to the end of the
// input, which is too irritating.
//
if (getInputSelection(element)!==null) {
element.onkeyup= function() {
value= element.value;
for (var i= 0; i<replacements.length; i++) {
value= value.split(replacements[i][0]).join(replacements[i][1]);
}
if (value!=element.value) {
var s= getInputSelection(element);
element.value= value;
setInputSelection(element, s);
}
};
}
}
// Cross-browser (as much as possible anyway) cursor positioning
//
function getInputSelection(element) {
if (element.selectionStart!==window.undefined) {
return [element.selectionStart, element.selectionEnd];
} else if (document.selection) {
var BIG= 1000000;
var range= document.selection.createRange();
if (range.moveStart===window.undefined)
return [0, 0];
var start= -range.moveStart('character', -BIG);
var end= -range.moveEnd('character', -BIG);
return [start-1, end-1];
} else return null;
}
function setInputSelection(element, s) {
if (element.selectionStart!==window.undefined) {
element.selectionStart= s[0];
element.selectionEnd= s[1];
} else if (document.selection) {
var range= element.createTextRange();
range.collapse(true);
range.moveEnd('character', s[1]);
range.moveStart('character', s[0]);
range.select();
}
}
new DeGlyph(document.getElementById('Headline'));
new DeGlyph(document.getElementById('Body'));
嗯，这很有趣-就像Chris说的，只需扔掉你想要使用的替换数组的函数，而不是硬编码它 这是一个简单的问题 a稍微改变一下查找表的格式 b更改DeGlyph的功能sig以包括替换阵列 c添加一个计算要传递给DeGlyph的变量的函数 试穿一下大小在输入中选择文本，除了在浏览器窗口上失去焦点然后重新获得焦点来更新外，还需要什么？我以为它不起作用，直到我选择了原始文本，然后在浏览器和另一个程序之间来回执行alt tab
<!DOCTYPE html>
<html>
<head>
<script>
var mArray =
[
{
forId : 'headline',
replacements : [
//Single Quote Characters
['\u0027', '\''],
['\u2018', '\''],
['\u2019', '\''],
['\u201A', '\''],
['\u201B', '\'']
]
},
{
forId : 'body',
replacements : [
['\u0022', '"'],
['\u201C', '"'],
['\u201D', '"'],
['\u201E', '"'],
['\u201F', '"'],
['\u301D', '"'],
['\u301E', '"'],
['\u301F', '"']
]
},
{
forId : 'mTest',
replacements : [
['1', 'one'],
['2', 'two'],
['3', 'three'],
['4', 'four'],
['5', 'five']
]
}
];
function mDeGlyph(idStr, mDataBank)
{
var element = document.getElementById(idStr);
if (element == null)
{
alert('no element with that id="'+idStr+'" found');
return;
}
var i, n = mDataBank.length, replacements, found=false;
for (i=0; i<n; i++)
{
if (mDataBank[i].forId == idStr)
{
replacements = mDataBank[i].replacements;
found = true;
break;
}
}
if (found == true)
{
DeGlyph(element, replacements);
}
else
alert("no apparent entry for that id-string");
}
function DeGlyph(element, replacements)
{
// Only attempt to use replacer behaviour if we can retain the cursor
// position. Setting value by default moves the cursor to the end of the
// input, which is too irritating.
//
if (getInputSelection(element)!==null) {
element.onkeyup= function() {
value= element.value;
for (var i= 0; i<replacements.length; i++) {
value= value.split(replacements[i][0]).join(replacements[i][1]);
}
if (value!=element.value) {
var s= getInputSelection(element);
element.value= value;
setInputSelection(element, s);
}
};
}
}
// Cross-browser (as much as possible anyway) cursor positioning
//
function getInputSelection(element) {
if (element.selectionStart!==window.undefined) {
return [element.selectionStart, element.selectionEnd];
} else if (document.selection) {
var BIG= 1000000;
var range= document.selection.createRange();
if (range.moveStart===window.undefined)
return [0, 0];
var start= -range.moveStart('character', -BIG);
var end= -range.moveEnd('character', -BIG);
return [start-1, end-1];
} else return null;
}
function setInputSelection(element, s) {
if (element.selectionStart!==window.undefined) {
element.selectionStart= s[0];
element.selectionEnd= s[1];
} else if (document.selection) {
var range= element.createTextRange();
range.collapse(true);
range.moveEnd('character', s[1]);
range.moveStart('character', s[0]);
range.select();
}
}
// just displays the list of repoklacements that we have for assorted ids.
function mInit()
{
// mDeGlyph('Headline');
// mDeGlyph('Body');
mDeGlyph('mTest', mArray);
}
</script>
<style>
</style>
</head>
<body onload='mInit();'>
<input id='mTest' value='1 3 5' />
</body>
</html>
为什么不将数组作为变量传入，而不是将切换到函数本身的逻辑编码？哇。。。那么jQuery在哪里呢P