option

select <select> item by value

由 一个人想着一个人 提交于 2019-11-27 02:44:48
问题 i have <select id="x"> <option value="5">hi</option> <option value="7">hi 2</option> </select> I want a javascript function that enables me to select and display the <option> as default one by id. In other words, I want to do a setOption(5) and the <option> with the value "5" to be displayed in the combobox as a default . Is that possible? 回答1: If you can, with ES6... function setOption(selectElement, value) { return [...selectElement.options].some((option, index) => { if (option.value ==

ECharts天气预报折线图

由 谁说我不能喝 提交于 2019-11-27 02:34:52
引入依赖文件 JQuery和ECharts < script src = " ./js/jquery-3.4.1.min.js " > </ script > < script src = " ./js/echarts.min.js " > </ script > < div id = " weather " class = " col-lg-7 col-md-12 " style =" height : 400px " > </ div > 2.初始化图表 // 初始化天气折线图 var weather = echarts . init ( $ ( '#weather' ) . get ( 0 ) ) ; option = { title : { text : '未来一周气温' , subtext : '' } , tooltip : { trigger : 'axis' } , legend : { data : [ '最高气温' , '最低气温' ] } , xAxis : { type : 'category' , boundaryGap : false , data : [ ] } , yAxis : { scale : true , //纵坐标起始点根据最低值变化 type : 'value' , axisLabel : { formatter : '{value}

How to create HTML select option from JSON hash?

由 谁都会走 提交于 2019-11-27 02:27:13
问题 I have a simple JSON code: [{'1':'Name'}, {'2', 'Age'}, {'3','Gender'}] I have a select tag in my HTML: <select name="datas" id="datas"></select> I need a simple way to create HTML select box from this JSON, like this: <select name="datas" id="datas"> <option value="1">Name</option> <option value="2">Age</option> <option value="3">Gender</option> </select> 回答1: Just for kicks here is an answer in pure javascript, also you probably do not need an array for this just a simple object will

Get Text From <option> Tag Using PHP

由 |▌冷眼眸甩不掉的悲伤 提交于 2019-11-27 01:52:33
I want to get text inside the <option> tags as well as its value. Example <select name="make"> <option value="5"> Text </option> </select> I used $_POST['make']; and I get the value 5 but I want to get both value and the text . How can I do it using PHP? serialworm In order to get both the label and the value using just PHP, you need to have both arguments as part of the value. For example: <select name="make"> <option value="Text:5"> Text </option> </select> PHP Code <?php $parts = $_POST['make']; $arr = explode(':', $parts); print_r($arr); Output: Array( [0] => 'Text', [1] => 5 ) This is one

Convert a List of Options to an Option of List using Scalaz

由 不羁的心 提交于 2019-11-27 01:46:54
问题 I want to transform a List[Option[T]] into a Option[List[T]] . The signature type of the function is def lo2ol[T](lo: List[Option[T]]): Option[List[T]] The expected behavior is to map a list that contains only Some s into a Some containing a list of the elements inside the elements Some 's. On the other hand, if the input list has at least one None , the expected behavior is to just return None . For example: scala> lo2ol(Some(1) :: Some(2) :: Nil) res10: Option[List[Int]] = Some(List(1, 2))

Difference between terms: “option”, “argument”, and “parameter”?

由 二次信任 提交于 2019-11-26 23:54:32
问题 What are the differences between these terms: "option", "argument", and "parameter"? In man pages these terms often seem to be used interchangeably. 回答1: A command is split into an array of strings named arguments . Argument 0 is (normally) the command name, argument 1, the first element following the command, and so on. These arguments are sometimes called positional parameters . $ ls -la /tmp /var/tmp arg0 = ls arg1 = -la arg2 = /tmp arg3 = /var/tmp An option is a documented type of

Option Parsers for C/C++? [duplicate]

由 元气小坏坏 提交于 2019-11-26 22:58:47
问题 Possible Duplicate: What parameter parser libraries are there for C++? I've done some looking and there are a whole lot of libraries for command line option parsing, but it is difficult to differentiate between them. Does anyone have any experience with any of them? Is one harder/better/faster/easier/whatever than any of the others? Or should I just grow my own? 回答1: If you want something completely cross-platform, I've found the Boost::Program_Options library to be very good. There's

Add a checkbox on single product pages that adds an additional cost in Woocommerce

由 自作多情 提交于 2019-11-26 21:46:21
问题 In woocommerce, I am using the following code to display an input text field on admin product edit pages, that allow me to add an additonal pricing option to the product: add_action( 'woocommerce_product_options_pricing', 'wc_cost_product_field' ); function wc_cost_product_field() { woocommerce_wp_text_input( array( 'id' => 'repair_price', 'class' => 'wc_input_price short', 'label' => __( 'Repair Cost', 'woocommerce' ) . ' (' . get_woocommerce_currency_symbol() . ')' ) ); } add_action( 'save

Hovering over an <option> in a select list

由 你说的曾经没有我的故事 提交于 2019-11-26 20:58:20
问题 I am trying to show a description when hovering over an option in a select list, however, I am having trouble getting the code to recognize when hovering. Relevant code: Select chunk of form: <select name="optionList" id="optionList" onclick="rankFeatures(false)" size="5"></select> <select name="ranks" id="ranks" size="5"></select> Manipulating selects (arrays defined earlier): function rankFeatures(create) { var $optionList = $("#optionList"); var $ranks = $("#ranks"); if(create == true) {

mysqldump unknown option no beep

由 自闭症网瘾萝莉.ら 提交于 2019-11-26 20:51:59
问题 I'm running MySQL 5.5 on Windows, attempting a mysqldump: "C:\WebServer\MySQL Server 5.5\bin\mysqldump.exe" -u user -ppassword database > "C:\backup.sql" But get error: mysqldump: unknown option '--no beep' This is a pretty basic command, and works on two other development boxes, so not sure what is causing this? 回答1: Same issue, commented out (#) the no-beep line in the MySQL my.ini, solved the problem. 回答2: I found this answer on dba.stackexchange.com, which is very helpful: The no-beep
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