[英]javascript - Push function to array, loop through and remove after executed
我正在尝试创建一个数组,该数组包含所有出现在DOM上的未决错误消息(为此使用jquery),然后遍历该数组以查看是否有任何错误消息要调用,如果是,则在执行它们后将其删除。
我的问题是我不知道如何将函数推入数组然后执行。 这是我到目前为止的内容:
var dialogQueue = []
dialogQueue.push(errorCall("test", "test", "test", "test"));
for (var queueNum = 1, 1 < dialogQueue.length, 1++) {
alert(dialogQueue[1])
}
如果有帮助,我用于显示错误消息的代码:
function dialogShow() {
$(".dialog-con").css("display", "block").css("background", "rgba(0,0,0,.8)")
$(".body-wrapper").addClass("errorFilter");
$(".dialog-anim").animate({
opacity: 1,
marginTop: "-=20px"
})
setTimeout(function () {
$(".errorFilter").addClass("blur");
}, 100);
}
function dialogHide() {
$(".dialog-con").css("background", "rgba(0,0,0,.0")
$(".body-wrapper").removeClass("blur");
$(".dialog-anim").animate({
opacity: 0,
marginTop: "-=25px"
}, 300)
setTimeout(function () {
$(".dialog-con").css("display", "none");
$(".body-wrapper").removeClass("errorFilter");
// Code for removing the function from the array after pushing OK on the dialog
}, 1000);
}
function errorCall(title, sub, text, code) {
$(".dialog .title").text(title);
$(".dialog .subtitle").text(sub);
$(".dialog .text").html(text);
$(".dialog .error-code").html(code);
dialogShow();
}
我将为您提供完整的errorCall()
函数:
function dialogShow() { $(".dialog-con").css("display", "block").css("background", "rgba(0,0,0,.8)") $(".body-wrapper").addClass("errorFilter"); $(".dialog-anim").animate({ opacity: 1, marginTop: "-=20px" }) setTimeout(function () { $(".errorFilter").addClass("blur"); }, 100); } function dialogHide() { $(".dialog-con").css("background", "rgba(0,0,0,.0") $(".body-wrapper").removeClass("blur"); $(".dialog-anim").animate({ opacity: 0, marginTop: "-=25px" }, 300) setTimeout(function () { $(".dialog-con").css("display", "none"); $(".body-wrapper").removeClass("errorFilter"); }, 1000); } function errorCall(title, sub, text, code) { $(".dialog .title").text(title); $(".dialog .subtitle").text(sub); $(".dialog .text").html(text); $(".dialog .error-code").html(code); dialogShow(); } errorCall("Hello stackoverflow!","This is how my error message dialog looks!","Blah blah blah blah","Code code code");
.dialog-con { height: 100%; display: none; position: fixed; width: 100%; background-color: rgba(0, 0, 0, .0); z-index: 50; transition: ease 300ms; } .dialog-anim { width: 100%; height: 100%; display: none; display: flex; flex-direction: column; justify-content: center; opacity: 0; margin-top: -20px; } .dialog { margin: auto; padding: 12px 27px; background: white; border-radius: 3px; width: 520px; transform: translateY(30px) } .dialog .title-con { margin-bottom: 25px; } .dialog .title { font-size: 35px; padding-bottom: 7px; } .dialog .error-code { margin-top: 15px; color: rgba(0, 0, 0, .6); font-family: "Courier New", Courier, monospace } .dialog .subtitle { font-size: 17px; color: rgba(0, 0, 0, 0.4); } .dialog .text {} .dialog .button-con { margin-top: 25px; } .dialog button { margin: auto; float: right; color: white; border: none; padding: 9px 37px; background: #10b5ff; text-transform: uppercase; font-weight: bold; border-radius: 3px; } .dialog button:hover { background: black; cursor: pointer; }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div class="dialog-con"> <div class="dialog-anim"> <div class="dialog"> <div class="title-con"> <div class="title">Error Message Title</div> <div class="subtitle"></div> </div> <div class="text-con"> <div class="text">Error Message</div> <div class="error-code"></div> </div> <div class="button-con" onclick="dialogHide()"> <button>Ok</button> </div> </div> </div> </div>
(确定按钮的位移是微小的视口的结果,请忽略它。)
因此,我要执行此操作的原因是,如果某些事件触发了多个错误,则将它们推入数组并一个接一个地显示(按OK会显示下一个错误,依此类推)。
您需要创建一个函数包装器,以将它们存储在数组中。 目前,您将errorCall推送到数组时正在调用它。 请尝试以下代码:
var dialogQueue = []
dialogQueue.push(
function () {
errorCall("test", "test", "test", "test")
}
);
for (var queueNum = 0, 1 < dialogQueue.length, queueNum++) {
alert( dialogQueue[queueNum]() );
}
您还希望在执行后将其删除,因此可以这样做:
while(dialogQueue.length > 0) {
alert( dialogueQueue[0]() );
dialogueQueue.shift();
}
这是一个简化的示例:
var funcArr = [];
funcArr.push( console.log("Cat") );
// This immediately calls console.log, logging "cat". After console.log is
// evaluated we push its return value `undefined`
// Instead, we wrap the console.log in an anonymous function. This gives us
// a function which will execute what we desire when it is called.
funcArr.push( function() { console.log("cat"); } );
// there is nothing to invoke now, because we are creating a new function.
// now if we:
console.log( funcArr );
// we get: [function anonymous()]
// So if we say:
funcArr[0];
// this will evaluate to:
function() {
console.log("cat");
};
// Therefore invoking funcArr[0] calls an anonymous function, which runs
// the function we actually wanted to run.
funArr[0]();
ChadF方法的另一种选择是实例化一个函数,并在您想要显示消息时在其上调用一个方法。
// Your base function function error(a, b, c, d) { this.show = function() { alert(a + " " + b + " " + c + " " + d); }; } var dialogQueue = []; // Creating an instance of "error" dialogQueue.push(new error("test", "test2", "test3", "test4")); dialogQueue.push(new error("testing again", "test2", "test3", "test4")); alert("Data finished pushing"); for (var i = 0; i < dialogQueue.length; i++) { // Calling the "show" method from "error" dialogQueue[i].show(); }
您可以将args推送到数组上,然后使用它来执行函数。 您可以使用apply调用带有一组参数的给定函数。
像这样:
dialogQueue=[];
//fill the queue with arguments
dialogQueue.push([1,2,3,4]);
dialogQueue.push(["test","test","test","test"]);
dialogQueue.push(["bla","bla","bla","bla"]);
//fire off everything in the queue
var len=dialogQueue.length;
for (i=0;i<len;i++) {
//pop off the args, and use apply to call them
var args=dialogQueue.pop();
errorCall.apply(this, args);
}
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.