Google Apps Script 返回数组值并在 javascript 函数中使用它们
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Google Apps Script return array values and use them in a javascript function
提问by user2237168
I am trying return an array and use it in a javascript function, but it doesn't seem to work. My Code.gs is as follows:
我正在尝试返回一个数组并在 javascript 函数中使用它,但它似乎不起作用。我的 Code.gs 如下:
function doGet() {
return HtmlService.createHtmlOutputFromFile('test')
.setSandboxMode(HtmlService.SandboxMode.IFRAME);
}
function test() {
var locations = [];
var ss = SpreadsheetApp.openByUrl('https://docs.google.com/spreadsheets/d/13q7pIeMUHll6_5xBUpBavaBqALt9fnFnOIO-Hwy_pFc/edit'),
sheet = ss.getActiveSheet(),
range = ss.getRange("D2:D4"),
values = range.getValues();
for (var r=1; r<values.length; r++) {
var row = values[r];
locations.push(row[0]);
}
return locations;
}
The function in my test.html looks as follows:
我的 test.html 中的函数如下所示:
function hello() {
google.script.run.test();
}
So I want to pass the array and its contents to the hello function in my test.html. How can I make this work?
所以我想将数组及其内容传递给 test.html 中的 hello 函数。我怎样才能使这项工作?
回答by Alan Wells
You need a withSuccessHandler()
method chained to your google.script.run
:
您需要一个withSuccessHandler()
链接到您的方法google.script.run
:
function hello() {
google.script.run
.withSuccessHandler(injectHTML)
.test();
}
//This captures the returned string from the server side code
function injectHTML(argReturnedArray) {
//To Do - code to inject the HTML
};
Unfortunately, server side .gs
code will only return a string. But there's a way to deal with that. Use:
不幸的是,服务器端.gs
代码只会返回一个字符串。但是有一种方法可以解决这个问题。利用:
JSON.stringify(yourArray);
Your array is named locations
.
您的数组名为locations
.
return JSON.stringify(locations);
Now you need to convert the JSON string back to an array:
现在您需要将 JSON 字符串转换回数组:
function injectHTML(argReturnedArray) {
/* Put the array into the browsers window object in order to make the
* array named myReturnedArray available to all other functions.
*/
window.myReturnedArray = JSON.parse(argReturnedArray);
//To Do - code to inject the HTML
};
//Get the array in another function
function myOtherFunction() {
//Get the array from the browsers window object
var theArray = window.myReturnedArray;
var i=0, thisElement="";
for (i=0;i<theArray.length;i+=1) {
thisElement = theArray[i];
}
};