selection

问题 this happens in chrome (71.0.3578.80 on windows): on range.setStart the caret moves to the reference node, but after typing the new characters appear in the node before, when offset is 0. the expected behaviour would be, that the characters appear in the reference node of range.setStart. see here: http://jsfiddle.net/pgrds9qv/ function setCaret() { var el = document.getElementById("editable"); var range = document.createRange(); var sel = window.getSelection(); range.setStart(el.childNodes[2]

问题 I implemented a <textarea> in Elm such that tabs indent and unindent instead of change focus to another HTML element. Works great except that unindenting sometimes causes the selection to disappear! If I'm selecting the 5th character to the 12th character, I press shift - tab , then it removes 2 tab characters, but it also makes the selection change to a cursor at position 10. The selection range should remain the same.. I have an SSCCE at Ellie: https://ellie-app.com/3x2qQdLqpHga1/2 Here are

问题 I implemented a <textarea> in Elm such that tabs indent and unindent instead of change focus to another HTML element. Works great except that unindenting sometimes causes the selection to disappear! If I'm selecting the 5th character to the 12th character, I press shift - tab , then it removes 2 tab characters, but it also makes the selection change to a cursor at position 10. The selection range should remain the same.. I have an SSCCE at Ellie: https://ellie-app.com/3x2qQdLqpHga1/2 Here are

问题 I would like to create a URL pointing to a web service I write, http://mycoolthing.com , together with an #-anchor that refers to a text selection on that page. Is is possible in HTML/JS to create an anchor that refers to a Selection or a RangeObject? 回答1: chromium based browsers now support Scroll To Text Fragment https://chromestatus.com/feature/4733392803332096#:~:text=This%20feature%20allows%20a%20user,and%20scrolls%20it%20into%20view. 回答2: As I mentioned in a comment, here is an option

问题 I would like to create a URL pointing to a web service I write, http://mycoolthing.com , together with an #-anchor that refers to a text selection on that page. Is is possible in HTML/JS to create an anchor that refers to a Selection or a RangeObject? 回答1: chromium based browsers now support Scroll To Text Fragment https://chromestatus.com/feature/4733392803332096#:~:text=This%20feature%20allows%20a%20user,and%20scrolls%20it%20into%20view. 回答2: As I mentioned in a comment, here is an option

问题 I would like to create a URL pointing to a web service I write, http://mycoolthing.com , together with an #-anchor that refers to a text selection on that page. Is is possible in HTML/JS to create an anchor that refers to a Selection or a RangeObject? 回答1: chromium based browsers now support Scroll To Text Fragment https://chromestatus.com/feature/4733392803332096#:~:text=This%20feature%20allows%20a%20user,and%20scrolls%20it%20into%20view. 回答2: As I mentioned in a comment, here is an option

问题 i want to color the matched text of a file. first,i load the file text into FileItem.Content ,then use regex to get the matches,and next put the Content into a richtextbox and use the matches to set the caret position and color the text . and the code to fill richtextbox RtbCodes.Document.Blocks.Clear(); RtbCodes.Document.Blocks.Add(new Paragraph(new Run(item.Content))); foreach (Match m in item.Matches) { TextPointer start1 = RtbCodes.Document.ContentStart.GetPositionAtOffset(m.Index,

问题 The complete content of a <div> <div id="myElement"> Mary had a little <b>lamb</b>, its <i>fleece</i> was white as snow. Everywhere that mary went, the lamb was sure to go. </div> should be copied to the clipboard using this code const copyAll = document.querySelector("myElement"); window.getSelection().selectAllChildren(copyAll); document.execCommand("Copy"); window.getSelection().removeAllRanges(); (For the execCommand to work, the call must be executed via an event listener) But only the

问题 Plotting in Python using Altair: I have 2 charts plotted side-by-side and the right-hand plot includes a drop-down selection menu. By default, the drop-down menu displays on the bottom left of the plot. I would like to move the menu underneath the right-hand plot that it is linked to. I don't see anything in the documentation for selection_single or add_selection that relates to the location of the menu. I'm using the | method to concatenate the plots horizontally. Simplified example: Code to

问题 I have used chartjs in order to display chart, and I am using API to fetch my data and same is fed to the chart. Here is my Chart_from_API.vue <template> <div class="chart-container" style="position: relative; height: 25vh; width:100%;"> <div id="range-selector"> <input type="button" id="1m" @click="selectPeriod" class="period ui-button" value="1m" /> <input type="button" id="3m" @click="selectPeriod" class="period ui-button" value="3m" /> <input type="button" id="6m" @click="selectPeriod"