js 获取输入框中光标的索引位置】的更多相关文章

<html> <head></head> <body> <script> function getTxt1CursorPosition(){ var oTxt1 = document.getElementById("txt1"); var cursurPosition=-1; if(oTxt1.selectionStart){//非IE浏览器 cursurPosition= oTxt1.selectionStart; }els…
一半是参照别人代码,一半是自己代码,略笨拙,如果有更好的方法希望分享. 获取当前光标位置的方法 getCaretPosition (obj:any) { //获取输入框中当前光标的位置,obj为此输入框 let $scope = this.$scope; let $log = this.$log; $scope.caretPosition = 0; if (document.selection) { obj.focus(); var oSel = document.selection.creat…
先看动图如下,我们就可以很清楚的知道获取input标签中光标的索引的意思了. 由于IE支持document.selection,Firefox,Chrome,Safari以及Opera都有selectionStart和selectionEnd属性 <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible&qu…
代码如下: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>js获取编辑框游标的位置<…
一.通过JS获取鼠标点击时图片的相对坐标位置 源代码如下所示: <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>通过JS获取图片的相对坐标位置</title> <style> body {margin: 0; padding: 0; } #area{width:300px;height:300…
出处:http://www.cnblogs.com/MrZouJian/p/5850553.html function getTxt1CursorPosition(){ var oTxt1 = document.getElementById("txt1"); var cursurPosition=-1; if(oTxt1.selectionStart){//非IE浏览器 cursurPosition= oTxt1.selectionStart; }else{//IE var range…
关键API: Element.getBoundingClientRect() mdn:https://developer.mozilla.org/en-US/docs/Web/API/Element/getBoundingClientRect 用法: var rect = element.getBoundingClientRect(); console.log(rect.top, rect.right, rect.bottom, rect.left); 获取相对位置: var bodyRect…
<html> <head> <script language="javascript"> function getCursortPosition (ctrl) {//获取光标位置函数 var CaretPos = 0; // IE Support if (document.selection) { ctrl.focus (); var Sel = document.selection.createRange (); Sel.moveStart ('c…
常见clientWidth.clientHeight.offsetWidth.offsetLeft,clientX.scrollTop等词语,比较混乱,现在总结下他们的区别. 1. clientWidth:元素的宽度(width+padding),offsetWidth相比clientWidth,多个border的值 ( width+padding+border).clientHeight . offsetHeight略 //某个元素的宽度和高度 var div1 = document.getE…
(function ($, undefined) { $.fn.getCursorPosition = function () { var el = $(this).get(0); var pos = 0; if ('selectionStart' in el) { pos = el.selectionStart; } else if ('selection' in document) { el.focus(); var Sel = document.selection.createRange(…