Javascript 按钮单击会临时更改div背景色,而不是永久更改
我有一个div,它包含两个输入字段和按钮,可以在单击时更改div的背景色,问题是当我单击按钮时(每个按钮代表一种颜色),背景色只会在一秒钟内更改,而不会永久更改Javascript 按钮单击会临时更改div背景色,而不是永久更改,javascript,jquery,html,css,function,Javascript,Jquery,Html,Css,Function,我有一个div,它包含两个输入字段和按钮,可以在单击时更改div的背景色,问题是当我单击按钮时(每个按钮代表一种颜色),背景色只会在一秒钟内更改,而不会永久更改 var noteCreate = { noteCreateContainer : $("<article>", { id: "noteCreateContainer" }), noteForm : $("<form>", { id: "noteFormContainer" }), subjectField
var noteCreate =
{
noteCreateContainer : $("<article>", { id: "noteCreateContainer" }),
noteForm : $("<form>", { id: "noteFormContainer" }),
subjectField : $("<input>", { type: "text", placeholder: "Main Heading", id: "subject"}),
noteField : $("<input>", { type: "text", placeholder: "Enter your Note", id: "noteContent" }),
submitNote : $("<button>", { type: "submit", text: "post"}).click(saveFieldInput)
}
noteCreate.noteCreateContainer.appendTo("body");
noteCreate.noteForm.appendTo(noteCreateContainer);
//For each item in array create button
var noteColourArray = [];
noteColourArray[0] = "#03CEC2";
noteColourArray[1] = "#ADC607";
noteColourArray[2] = "#ffdd00";
noteColourArray[3] = "#f7941f";
//Loop through noteColourArray and create button for each item
for (var i = 0, len = noteColourArray.length; i < len; i++) {
noteCreate.noteForm.append($("<button>", {class: "colourSelect", text: noteColourArray[i] }).click(setBackgroundColour))
console.log(noteColourArray)
}
//Change background colour on click
function setBackgroundColour()
{
$("#noteCreateContainer").css("background-color", noteColourArray[$(this).index()] )
}
noteCreate.subjectField.appendTo(noteFormContainer);
noteCreate.noteField.appendTo(noteFormContainer);
noteCreate.submitNote.appendTo(noteFormContainer);
//Run upon submitting note
//Create class div that shares variables, but each own background-color
function saveFieldInput()
{
//Read input from input fields when note is submitted
var subjectInput = $("#subject").val();
console.log(subjectInput);
}
var-noteCreate=
{
noteCreateContainer:$(“”,{id:“noteCreateContainer”}),
noteForm:$(“”,{id:“noteFormContainer”}),
subjectField:$(“”,{类型:“文本”,占位符:“主标题”,id:“主题”}),
noteField:$(“”,{键入:“文本”,占位符:“输入您的注释”,id:“noteContent”}),
submitNote:$(“”,{键入:“提交”,文本:“发布”})。单击(saveFieldInput)
}
noteCreate.noteCreateContainer.appendTo(“主体”);
noteCreate.noteForm.appendTo(noteCreateContainer);
//对于数组中的每个项,请单击“创建”按钮
var NOTECOLOURARY=[];
NoteColorArray[0]=“#03CEC2”;
NoteColorArray[1]=“#ADC607”;
NoteColorArray[2]=“#ffdd00”;
NoteColor数组[3]=“f7941f”;
//循环查看NoteColorArray并为每个项目创建按钮
对于(变量i=0,len=noteColorArray.length;i
更新:我在
函数setbackgroundcolor()
的末尾添加了return false
,这似乎是我从这篇文章中看到的结果,颜色按钮从来没有打算用作表单提交按钮,一个单独的按钮将解决这个问题尝试用类似的东西绑定click
方法$('.colorSelect').each(function(){$(this).on('click',function(e){e.preventDefault();setbackgroundcolor();})})
必须有其他东西在重新更改CSS。设置一个属性修改断点,以便您可以看到它是什么。您可以解释一下它是如何工作的吗?对javascript/jquery来说还是很新的,但喜欢understand@NathanAnderson您绑定单击事件的方法应该可以正常工作。@NathanAnderson,您的颜色会随着时间的推移而改变重新发布表单,以便重新加载页面。e.preventDefault
会阻止表单发回,因此页面不会被重置我写的有点不同,但我会将其标记为答案,因为问题是我缺少e.preventDefault,谢谢您的帮助
for (var i in noteColourArray) {
// build the button with pure JS just cause it's faster
var button = document.createElement('button'),
buttonText = document.createTextNode(noteColourArray[i]);
button.className = 'colourSelect';
button.appendChild(buttonText);
// append the button
noteCreate.noteForm.append(button);
}
$('.colourSelect').each(function(index, element) {
$(this).on('click', function(e) {
e.preventDefault();
$("#noteCreateContainer").css("background-color", noteColourArray[index]);
});
});