textarea

php :: new line in textarea?

由 时光总嘲笑我的痴心妄想 提交于 2019-11-28 09:01:29
How do you create a new line in a textarea when inserting the text via php? I thought it was \n but that gets literally printed in the textarea. Thanks Without seeing your code I cannot be sure, but my guess is you are using single quotes ('\n') instead of double quotes ("\n"). PHP will only evaluate escape sequences if the string is enclosed in double quotes. If you use '\n', PHP will just take that as a literal string. If you use "\n", PHP will parse the string for variables and escape sequences and print a new line like you are expecting. Try $text = 'text line one' . PHP_EOL . 'text line

jQuery: Insert text to textarea [duplicate]

由 跟風遠走 提交于 2019-11-28 08:38:03
问题 This question already has an answer here: Insert text into textarea with jQuery 17 answers How can i utilize jQuery to insert text at the cursor into a textarea. 回答1: There is a plug-in that can get the cursor's position within a text area. This could be utilized to insert text at that designated position. 来源： https://stackoverflow.com/questions/1882890/jquery-insert-text-to-textarea

Large text in TextArea freezes computer

由 痞子三分冷 提交于 2019-11-28 08:37:43
问题 When I try to set the value of a textarea with a large text (for example a string length of 600000), the browser (Firefox 3.5.3) freezes. The text is in 1 line so text wrapping needs to happen by the textarea itself. I think this causes the problem. Does anyone know a fix for this problem? 回答1: The maximum size for a textarea in Firefox is 64K (it could be just 32K, I can't recall). 600,000 characters is larger than that. If the size of the text that you're pasting into the textarea does in

Remove line break from textarea

由 左心房为你撑大大i 提交于 2019-11-28 08:26:16
I have a textarea like this: <textarea tabindex="1" maxlength='2000' id="area"></textarea> I watch this textarea with jquery: $("#area").keypress(function (e) { if (e.keyCode != 13) return; var msg = $("#area").val().replace("\n", ""); if (!util.isBlank(msg)) { send(msg); $("#area").val(""); } }); send() submits the message to the server if the return key was pressed and if the message is not blank or only containing line spaces. The problem: After sending the message, the textarea is not cleared. On the first page load, the textarea is empty. Once a message was submitted, there is one blank

How to detect textarea size change with pure javascript?

由 不问归期 提交于 2019-11-28 08:12:04
问题 I want to notify when the size of textarea changes, what event happens at that time, how can I detect it? 回答1: Here is a small example using pure (without jQuery etc. dependencies) Javascript. It's using mouseup and keyup handlers and an optional intervall to detect changes. var detectResize = (function() { function detectResize(id, intervall, callback) { this.id = id; this.el = document.getElementById(this.id); this.callback = callback || function(){}; if (this.el) { var self = this; this

Java Swing - setting margins on TextArea with Line Border

由 痞子三分冷 提交于 2019-11-28 07:50:24
问题 As the title says, I am simply trying to set the margins (provide some padding) on a TextArea with a LineBorder set. Without setting the Border, .setMargins works fine. Here is the specific chunk of code. aboutArea = new JTextArea("program info etc....."); Border border = BorderFactory.createLineBorder(Color.BLACK); aboutArea.setSize(400, 200); aboutArea.setBorder(border); aboutArea.setEditable(false); aboutArea.setFont(new Font("Verdana", Font.BOLD, 12)); add(aboutArea); I have tried each of

Max length for HTML <textarea>

由 喜夏-厌秋 提交于 2019-11-28 07:36:25
How to restrict the maximum number of characters that can be entered into an HTML <textarea> ? I'm looking for a cross-browser solution. Espo The TEXTAREA tag does not have a MAXLENGTH attribute the way that an INPUT tag does, at least not in most standard browsers. A very simple and effective way to limit the number of characters that can be typed into a TEXTAREA tag is: <textarea onKeyPress="return ( this.value.length < 50 );"></textarea> Note: onKeyPress , is going to prevent any button press, any button including the backspace key. This works because the Boolean expression compares the

jQuery / JS get the scrollbar height of an textarea

由 妖精的绣舞 提交于 2019-11-28 07:13:24
问题 I've got a textarea with a fixed height. When the user types text into the textarea a scrollbar will show up after the user typed some text in it. How can I get the scrollbar height using jQuery or plain JavaScript? I've been searching for this for hours, but couldn't find anything. I can't just insert a div and get the scrollbar height via the div offset because a textarea is not allowed to have child elements. Please don't give me a link to a jQuery Plug-In that does the job. I want to

Maximum length on a textarea in Ruby on Rails

由 倖福魔咒の 提交于 2019-11-28 07:06:40
问题 I tried applying the :maxlenght => 40 on a textarea on my form. But it didn't work out. Can we have a length limit on a textarea? The code for text area is <%= f.text_area :data, :rows => 2, :cols => 60 , :maxlength => 140, :autocomplete => :off, :class => "textareabytes" %> 回答1: Just like Rahul said, there's no maxlength attribute for textarea in HTML. Only text input 's have that. The thing you need to remember, is that RoR's text_area function (and all of RoR's HTML-generator functions)

Automatically resize text area based on content [duplicate]

由 [亡魂溺海] 提交于 2019-11-28 07:02:15
This question already has an answer here: Creating a textarea with auto-resize 38 answers On one of my pages, I have a text area html tag for users to write a letter in. I want the content below the text area to shift down, or in other words, I want the text area to resize vertically with each line added to the text area and to have the content below simply be positioned in relation to the bottom of the text area. What I am hoping is that javascript/jquery has a way to detect when the words wrap, or when a new line is added and based on that do a resize of the text area container. My goal is
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