如何将一个 javascript 文件中的值传递到另一个 javascript 文件中
[英]how to pass a value from one javascript file into another javascript file
问题描述
Currently, by using the "$.getScript" jquery method I am able to pass the pass parameters from one javascript file into another javascript file.
目前，通过使用“$.getScript”jquery 方法，我能够将传递参数从一个 javascript 文件传递到另一个 javascript 文件。 For instance, this $.getScript call made on javascript file name "secondJavaScript.js" file to call the function name callMemoPage() from "firstJavaScript.js" file.例如，对 javascript 文件名“secondJavaScript.js”文件进行的 $.getScript 调用以从“firstJavaScript.js”文件中调用 function 名 callMemoPage()。 I am passing the following "pageName", "acctNum" paramaters from "secondJavaScript.js" into "firstJavaScript.js" file.我将以下“pageName”、“acctNum”参数从“secondJavaScript.js”传递到“firstJavaScript.js”文件中。 However, the issue how to get the value of the function "callMemoPage" into this "secondJavascript.js" file.但是，如何将 function“callMemoPage”的值获取到这个“secondJavascript.js”文件中的问题。 And that value kept in variable "Memo" - which is in "firstJavaScript.js" file.该值保存在变量“Memo”中 - 在“firstJavaScript.js”文件中。
$.getScript('firstJavaScript.js', function(){
getMemo();
function getMemo(){
var pageName = "Memo Page"
var acctNum = "123"
// callMemoPage function located in "firstJavaScript.js" file
callMemoPage(pageName, acctNum)
console.log(Memo);
}
});
// firstJavaSctipt.js file
function callMemoPage(pageName, acctNum){
var Memo;
if(pageName == 'Memo Page') && (acctNum = '123'){
function(memoField){
var memoField = window.open("https://www.example.com");
// question how to pass the value of Memo into secondJavaScript.js file
Memo = $(memoField).find('input[name="MEMO"]').val();
}
}
}
3 个解决方案
解决方案1
0 2020-06-30 23:01:27
You can write it to a JSON file using the fs module:您可以使用fs模块将其写入JSON文件：
const fs = require('fs');
fs.writeFileSync('file.json', JSON.stringify(yourVariable));
// Other file
const myVariable = require('file.json');
解决方案2
0 2020-06-30 23:07:36
If these two pages are in the same origin: see https://developer.mozilla.org/en-US/docs/Web/Security/Same-origin_policy , you can store the result of Memo in a cookie and then access it in the second page如果这两个页面在同一来源：请参阅https://developer.mozilla.org/en-US/docs/Web/Security/Same-origin_policy ，您可以将Memo的结果存储在 cookie 中，然后在第二页
解决方案3
0 2020-06-30 23:13:05
Let's say you have multiple functions in fileOne.js, and you want to use them in fileTwo.js.假设您在 fileOne.js 中有多个函数，并且您想在 fileTwo.js 中使用它们。 well in HTML you import them like this:在 HTML 中，您可以像这样导入它们：
<html>
...
<script src="fileOne.js">
<script src="fileTwo.js">
...
</html>
Notice that fileOne.j s must be before fileTwo.js , so every variable in fileOne.js will be available in fileTwo.js.请注意fileOne.js必须在fileTwo.js之前，因此 fileOne.js 中的每个变量都将在 fileTwo.js 中可用。 That's because HTML is synchronous .那是因为 HTML 是同步的。
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