option

Mac + Chrome 快捷键

由 流过昼夜 提交于 2019-12-10 18:58:44
Mac快捷键使用： Command（或 Cmd）⌘ Shift ⇧ Option（或 Alt）⌥ Control（或 Ctrl）⌃ Caps Lock ⇪ Fn Control + 左右箭头 桌面切换 Control + 上下箭头 全局页面切换还原 剪切、拷贝、粘贴和其他常用快捷键 Command-X：剪切所选项并拷贝到剪贴板。 Command-C：将所选项拷贝到剪贴板。这同样适用于“访达”中的文件。 Command-V：将剪贴板的内容粘贴到当前文稿或应用中。这同样适用于“访达”中的文件。 Command-Z：撤销上一个命令。随后您可以按 Shift-Command-Z 来重做，从而反向执行撤销命令。在某些应用中，您可以撤销和重做多个命令。 Command-A：全选各项。 Command-F：查找文稿中的项目或打开“查找”窗口。 Command-G：再次查找：查找之前所找到项目出现的下一个位置。要查找出现的上一个位置，请按 Shift-Command-G。 Command-H：隐藏最前面的应用的窗口。要查看最前面的应用但隐藏所有其他应用，请按 Option-Command-H。 Command-M：将最前面的窗口最小化至“程序坞”。要最小化最前面的应用的所有窗口，请按 Option-Command-M。 Command-O：打开所选项，或打开一个对话框以选择要打开的文件。

Is there a name for this kind of lifting a function?

由 跟風遠走 提交于 2019-12-10 18:09:33
问题 I wrote a Scala function: def liftOrIdentity[T](f: (T, T) => T) = (a: Option[T], b: Option[T]) => (a, b) match { case (Some(a), None) => Some(a) case (None, Some(b)) => Some(b) case (Some(a), Some(b)) => Some(f(a, b)) case (None, None) => None } Is there a name for this pattern? It is not quite an applicative functor due to cases 1 and 2. Feel free to answer with Haskell or Scala code. 回答1: On collection it is flatten + reduce : List(a, b).flatten.reduceOption(f) a ++ b reduceOption f // same

How can I get selectize to insert the text of the option, not just the value?

由 一个人想着一个人 提交于 2019-12-10 17:35:51
问题 I am trying to use Selectize.js to handle a multi-select field in my form. When you select an option from the dropdown, it adds a selection to the select field , but only adds the data value. Does anyone know if there is an easy way to get Selectize to add the text from the option as well? 回答1: Use the .getItem(value) method. https://github.com/brianreavis/selectize.js/blob/master/docs/api.md#methods_options Try here: http://jsfiddle.net/pzekurvp/5/ var selectizedElement, $selectizedElement;

How to modify SELECT tag's default highlight behaviour in IE and Opera?

由 两盒软妹~` 提交于 2019-12-10 17:31:35
问题 Here is my HTML: <select style="background-color:#e0f0f1"> <option selected="selected">Select</option> <option class="" value="one">One</option> <option class="" value="two">Two</option> </select> See this code in action In IE and Opera, when you select an option, it is highlighted with a blue background colour. Firefox, Chrome and Safari don't do this. Is there a way or trick to remove that blue highlight when the option is selected so that the original background colour is always shown? If

jQuery multiple select option with image

由 依然范特西╮ 提交于 2019-12-10 16:55:32
问题 Is there a jQuery tool that allows me to create a downdown list with multiple selection ("SELECT" in HTML terms with multiple option enable) where I can have images in the list? This is great: jQuery UI MultiSelect Widget but you can´t insert images This is algo a good chice: JavaScript image combobox but multiple selection doesn´t work 回答1: This is the way to do it with Eric Hynds jQuery UI MultiSelect Widget I also created a FIDDLE so you can see it in action :) My detailed explanation can

Is there a way to hint to the compiler to use some kind of default generic type when using Option::None?

由 ε祈祈猫儿з 提交于 2019-12-10 16:47:57
问题 I need a function that gets an Option of an generic type T that implements the trait std::iter::IntoIterator . A naive implementation could look like the following (yes, the unwrap would panic on None ): fn main() { let v = vec![1i32, 2, 3]; print_iter(Some(v)); print_iter(None); } fn print_iter<T: IntoIterator<Item = i32>>(v: Option<T>) { for e in v.unwrap() { println!("{}", e); } } Test on playground. This works as expected for Some(...) , but fails for None with: error[E0282]: type

JavaScript get position of option element?

由 蓝咒 提交于 2019-12-10 16:13:17
问题 I have a web app that needs to know the position (x/y not index!) of an option element inside a multi select list. It works great in Firefox but no dice in Chrome or IE. Is it possible to get an option's position in Chrome/IE with JavaScript? Here is my fiddle displaying the issue: http://jsfiddle.net/jamiller619/Kbh4g/3/ Works with Firefox but not in IE/Chrome. 回答1: Short answer - you can't (webkit issue). But you can cheat!!! HTML: <div style="position:relative"> <select multiple="multiple"

how to get the value of an option in select menu onChange using jquery?

由 北城余情 提交于 2019-12-10 16:12:15
问题 i'm trying to implement clone select menu using the following plugin: https://github.com/afEkenholm/ScrollectBox https://github.com/afEkenholm/ScrollectBox/blob/master/index.html https://github.com/afEkenholm/ScrollectBox/blob/master/js/ScrollectBox/jquery.scrollectbox.js but i'm unable to get the option value of select menu. it returns option text instead. how to get the value (but not text) of an option in the following select menu onChange using jquery call function? <script type="text

jquery get select options to array

由 时光总嘲笑我的痴心妄想 提交于 2019-12-10 15:57:39
问题 I'm kind of stuck with one - presumably simple to resolve problem. I want to create the code which will be used for all select elements on the site. Depending on the "label" attribute assigned to the "option" I want to hide all other "div" elements which have classes the same as other "label" values of the "options" in this specific "select" menu. Let me demonstrate: <select class="sel_depend" id="reg_where_heard" name="where_heard"> <option value="">Select one…</option> <option value="1"

jQuery取得select选择的文本与值

由 寵の児 提交于 2019-12-10 15:51:30
jquery获取select选择的文本与值 获取select ： 获取select 选中的 text : $("#ddlregtype").find("option:selected").text(); 获取select选中的 value: $("#ddlregtype ").val(); 获取select选中的索引: $("#ddlregtype ").get(0).selectedindex; 设置select: 设置select 选中的索引： $("#ddlregtype ").get(0).selectedindex=index;//index为索引值 设置select 选中的value： $("#ddlregtype ").attr("value","normal“); $("#ddlregtype ").val("normal"); $("#ddlregtype ").get(0).value = value; 设置select 选中的text: var count=$("#ddlregtype option").length; for(var i=0;i<count;i++) { if($("#ddlregtype ").get(0).options[i].text == text) { $("#ddlregtype ").get(0).options[i]
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