onchange

Reactjs which is the better way to use change handler

由 心已入冬 提交于 2020-01-05 00:53:52
问题 So I know there are several ways to do this but I am wondering which is the better or more appropriate way to create a search bar component? Could you please explain why? I'm new to react and have seen tutorials and what not and everybody does there change handlers a little differently. state = { term: '', }; onChange = this.onChange.bind(this); onChange(e) { console.log(e.target.value); this.setState({ term: e.target.value }); }; <input value={this.state.term} onChange={this.onChange} /> I

onchange on date inputs [duplicate]

由 ＊爱你＆永不变心＊ 提交于 2020-01-04 07:18:20
问题 This question already has answers here : Closed 8 years ago . Possible Duplicate: What events does an <input type=“number” /> fire when it's value is changed? I have a date input field <input type="date" name=".."> In webkit and firefox, it will be added two up/down arrows on the side of the input. When clicking them, the date goes forward or backwards, but the onchange event doesn't trigger until the field loses focus. Is there a workaround for this? 回答1: You could store the value in a

onchange on date inputs [duplicate]

由 余生颓废 提交于 2020-01-04 07:17:03
问题 This question already has answers here : Closed 8 years ago . Possible Duplicate: What events does an <input type=“number” /> fire when it's value is changed? I have a date input field <input type="date" name=".."> In webkit and firefox, it will be added two up/down arrows on the side of the input. When clicking them, the date goes forward or backwards, but the onchange event doesn't trigger until the field loses focus. Is there a workaround for this? 回答1: You could store the value in a

Function is not defined ReferecenError onchange in Angularjs

由 こ雲淡風輕ζ 提交于 2020-01-04 05:46:09
问题 I'm having issues with onchange event for file input. Here is my code: Html: <input type="file" kendo-upload k-options="uploadOptions" id="fileInput" onchange="fileUploaded(event)"/> Angularjs code - using Typescript. $scope.fileUploaded = (event) => { console.log("Testing file upload"); var reader = new FileReader(); var target = event.target || event.srcElement; reader.onload = function(e) { $scope.$apply(function() { $scope.readFile = reader.result; }); }; var file = target.files[0];

Javascript : onchange event does not fire when value is changed in onkeyup event [duplicate]

由 孤街浪徒 提交于 2020-01-03 08:38:36
问题 This question already has an answer here : Javascript: “onchange” event does not work with “value” change in “text input” object (1 answer) Closed 6 years ago . I have this simply code : <body> <input type="text" onkeyup="this.value = (new Date()).getSeconds()" onchange="alert(1)" /> </body> I dont't know why the textbox value has changed when i press the key but the onchange event does not fire. How can i fire onchange event ? 回答1: The onchange will fire when you leave the focus from it (if

Javascript : onchange event does not fire when value is changed in onkeyup event [duplicate]

由 空扰寡人 提交于 2020-01-03 08:38:27
问题 This question already has an answer here : Javascript: “onchange” event does not work with “value” change in “text input” object (1 answer) Closed 6 years ago . I have this simply code : <body> <input type="text" onkeyup="this.value = (new Date()).getSeconds()" onchange="alert(1)" /> </body> I dont't know why the textbox value has changed when i press the key but the onchange event does not fire. How can i fire onchange event ? 回答1: The onchange will fire when you leave the focus from it (if

Execute function when selecting same option in select html tag

由 十年热恋 提交于 2020-01-03 05:52:39
问题 I execute functions throughout my cordova app, whenever someone clicks an <option> in the <select> dropdown box, by using the onChange="" HTML attribute. I would like to be able to execute the functions when they click the same option. onChange obviously won't work here. Is there some kind of work around to allow this to happen, so when the user clicks the same option that is already selected in the HTML select tag, it executes the method? This would enable me to delete some unsightly buttons

Putting focus on a textbox in onchange event

由 ε祈祈猫儿з 提交于 2020-01-03 03:16:23
问题 I am trying to get it so that when a certain value is put into a textbox, the focus will stay on the textbox(and an alert will be shown in production). I am trying to get this to work in Firefox 3.5.7 with no luck. How can I make it so when a textbox is a certain value at onchange that it will stay focused/refocus on the textbox? Live example is at http://jsbin.com/ipina <body> Enter your name: <input type="text" name="fname" id="fname" onchange=" if(this.value=='foo'){ this.select(); this

Doctrine blameable extension 'on change' doesn't work

由 故事扮演 提交于 2020-01-02 03:39:25
问题 I'm on symfony 2.6.3 with stof Doctrine extension. TimeStampable and SoftDeletable work well. Also Blameable "on create" and "on update" are working well too: /** * @var User $createdBy * * @Gedmo\Blameable(on="create") * @ORM\ManyToOne(targetEntity="my\TestBundle\Entity\User") * @ORM\JoinColumn(name="createdBy", referencedColumnName="id") */ protected $createdBy; /** * @var User $updatedBy * * @Gedmo\Blameable(on="update") * @ORM\ManyToOne(targetEntity="my\TestBundle\Entity\User") * @ORM

Primefaces tabView executes form validation on tab change

由 守給你的承諾、 提交于 2020-01-01 16:46:40
问题 I am having a serious issue with the p:tabView component. I have set dynamic="true" and cache="false" to the tabView. One of the tabs has some input components which are set required="true" . Now when I am changing the tab each time, the form validation is occurring and the FacesMessages are being displayed in growl. Here is the tab: <ui:composition xmlns="http://www.w3.org/1999/xhtml" xmlns:ui="http://java.sun.com/jsf/facelets" xmlns:h="http://java.sun.com/jsf/html" xmlns:f="http://java.sun
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