Home > Web Front-end > JS Tutorial > body text

JS inserts text at the TextArea cursor position and moves the cursor to the end of the text_javascript skills

WBOY
Release: 2016-05-16 17:31:46
Original
1456 people have browsed it

=IE支持document.selection
=Firefox,Chrome,Safari以及Opera都有selectionStart和selectionEnd属性

复制代码 代码如下:

function insertText(obj,str) {
if (document.selection) {
var sel = document.selection.createRange();
sel.text = str;
} else if (typeof obj.selectionStart === 'number' && typeof obj.selectionEnd === 'number') {
var startPos = obj.selectionStart,
endPos = obj.selectionEnd,
cursorPos = startPos,
tmpStr = obj.value;
obj.value = tmpStr.substring(0, startPos) str tmpStr.substring(endPos, tmpStr.length);
cursorPos = str.length;
obj.selectionStart = obj.selectionEnd = cursorPos;
} else {
obj.value = str;
}
}
function moveEnd(obj){
obj.focus();
var len = obj.value.length;
if (document.selection) {
var sel = obj.createTextRange();
sel.moveStart('character',len);
sel.collapse();
sel.select();
} else if (typeof obj.selectionStart == 'number' && typeof obj.selectionEnd == 'number') {
obj.selectionStart = obj.selectionEnd = len;
}
}

复制代码 代码如下:



复制代码 代码如下:


Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template