I am updated my durandal SPA application from VS_2012 to VS_2015 with TypeScript 1.8 which will generate JavaScript (ECMA5). I resolved all build errors.But I am unable to fix one typescript error called
"A 'return' statement can only be used within a function body"
I am working on view models. So I need return statement out side of function.
Due to build error I am not able to generate my java-script.
Below is my sample code in Type script:
class typescript1_8{
constructor(){
}
}
return new typescript1_8();
Java Script code needs to generate like below:
var typescript1_8 = (function () {
function typescript1_8() {
}
return typescript1_8;
}());
return new typescript1_8();
Note: I need return statement outside of class. It shouldn't throw any error in Type script as mentioned on above.
You cannot just return something from empty space, you can use Self-invoking function
(function() {
return new typescript1_8();
})();
Related
I'm completely beginner to frida.
I've this final method which belongs to class say X.
I want to extract the value of token variable -> result.getToken() when i hook frida to the android app which contains that class at runtime.
can anyone complete this code with javascript API of frida to get the value of token variable ?
Java.perform(function () {
Java.choose("com.xx.xx", {
onMatch: function (inst) {
//.................................
}
});
console.log("Done");
});
then i'll use --> frida -U -f "xxx.apk" -l test.js
thank you so much for help !!
Java.choose is in most cases the wrong approach because that only lists the existing instances of a class, so you can only hook a method if there is already an instance loaded into memory.
The common way is to hook the method itself so that all existing and newly created instances use your hook.
var classInstanceIdResult = Java.use('com.google.firebase.iid.InstanceIdResult');
var getTokenMethod = classInstanceIdResult.getToken.overload();
// replace the getToken() method with out own implementation
getTokenMethod.implementation = function () {
// call the orignal method
var ret = getTokenMethod.call(this);
// do something with ret
console.log("Token: " + ret);
return ret;
}
BTW: The code for hooking a Java method can simply be generated by using Jadx-Gui. Just decompile the APK, select the method and let Jadx generate the Frida code snipped necessary to hook the method (see context menu of the method).
I'm trying to develop my first Vaadin 14 application, I'm also using Spring boot framework for it.
I've created a javascript file, I put it into the folder frontend/src with the name of teams.js and I'm trying to import it with #JsModule("src/teams.js"). My root view class looks like this:
#Route("")
#PageTitle("Teams organization store init")
#Slf4j
#JsModule("src/teams.js")
#Tag("TeamsEntry")
public class TeamsEntryView extends VerticalLayout implements BeforeEnterObserver {
public TeamsEntryView() {
initTeams();
}
private void initTeams() {
var ui = UI.getCurrent();
var page = ui.getPage();
log.info("Teams initialization...");
page.executeJs(getTeamsConfig()).toCompletableFuture().whenComplete(((jsonValue, throwable) ->
log.info("Teams initialization completed: {} with throwable {}", jsonValue.toJson(), throwable.getMessage())
));
}
private String getTeamsConfig() {
return """
console.log('ss');
window.initTeams();
console.log('xx');
return true;
""";
}
...
My js file looks like this:
window = {
initTeams: function () {
console.log('initTeams...');
}
}
In this case, I see "ss" in the browser's console, but nothing more.
If I remove the window.initTeams(); line I get "ss" and "xx" as well.
If I declare a simple function in the js file and call it without the "window" class I get similar results.
If I use #Javascript or page.addJavascript("src/teams.js") I get this error when the page loads: "> unexpected character"
If I try to call join() or get() on the completable future the browser freeze.
If I use #Javascript("frontend://src/teams.js") I get some CORS error like if it is trying to download something from the "frontend" host.
I've tried to put the #JsModule on a component instead of my view.. it does not work.
I've tried to put my js file to the root, and to the resources folder.
I could not find any other solution to import and use my js file into vaadin14 with spring boot.
Also, I'm not sure why the browser freeze if I call "join()" on completable future, and also the on the result of it sentToBrowser returns false even if I see the console logs in the browsers log...
Can somebody explain to me how should I do the javascript import, why my current code does not work, and why the "join()" freezes the browser, please?
Thank you in advance!
#Edit
I have also tried with this annotation #JavaScript("./src/teams.js") and a js like this:
function initTeams () {
console.log('initTeams...');
console.log("Teams initialized!")
}
#Edit
Okay so finally I got it working.
The js file has to be under root/src/main/webapp/src folder.
Nor #JavaScript and nor the #JsModule worked for me, so I had to import my js file as:
var ui = UI.getCurrent();
var page = ui.getPage();
page.addJavaScript("src/teams.js");
Then I can call it like window.initTeams() or like initTeams() and both works fine. Altough the completable future below still never executes, and isSentToBrowser() always returns false.
page.executeJs(getTeamsConfig()).toCompletableFuture().whenComplete(((jsonValue, throwable) ->
log.info("Teams initialization completed: {} with throwable {}", jsonValue.toJson(), throwable.getMessage())
));
I must mention if I start the path with '.' like page.addJavaScript(".src/teams.js"); then it does not find the file.
Does anybody have an answer, why the completable future never executes?
The problem is that the following code redefines the window object:
window = {
initTeams: function () {
console.log('initTeams...');
}
}
Did you meant to add a function to the window object? Like so:
window.initTeams = function () {
console.log('initTeams...');
};
If you want to keep code visually similar to yours:
window = {
...window,
{
initTeams: function() {
console.log('initTeams...');
}
}
}
Other options:
window['initTeams'] = function() {...}
Object.assign(window, {initTeams: function() {...}})
Object.defineProperty(window, 'initTeams', {value: function() {console.log('foo')}});
Gotta love JavaScript...
Also, for more knowledge, the code mentioned in your #Edit section could not be called. Calling initTeams() is equivalent to window.initTeams(). The function must exist in the window object. This is why, for example, you see some custom elements defined like customElements.define(...) and window.customElements.define(...).
I'm trying to get eval() to recognize the VueJS eventBus when being called.
Here's an example of the code I'm trying to evaluate:
eval("eventBus.$emit('eventName');");
But I'm getting the error "eventBus is not defined, despite the eventBus being imported and working outside of the eval function.
Is there anyway to set the scope of eval to that of the Vue instance so eventBus is recognized?
Any help would be appreciated! Thank you!
More Information
In my project I'm using Blockly, which runs individual block code by processing a string of code set to a block, and calling eval() on it.
this is my runCode method, inside of a VueJS component
.....
runCode: function() {
// Generate JavaScript code and run it.
window.LoopTrap = 1000;
Blockly.JavaScript.INFINITE_LOOP_TRAP =
'if (--window.LoopTrap == 0) throw "Infinite loop.";\n';
var code = Blockly.JavaScript.workspaceToCode(this.workspace);
Blockly.JavaScript.INFINITE_LOOP_TRAP = null;
try {
eval(code); //Eval call here
} catch (e) {
alert(e);
}
},
....
This is a generalized version of setting the code mapped to the block I want to execute.
Blockly.JavaScript['blockName'] = function(block) {
let code = "eventBus.$emit('eventName');";
return code;
};
I have a couple of typescript functions that link to each other to generate a specific template. I would like to load this template in a another part of my application but I do not want to have it reprocess every time when a client loads the application.
Is there a way where or a library that could turn this typescript file:
function a(){
return "string1"
}
function b(){
return "string2"
}
function join(){
return a + b
}
export let renderedOutput = join()
into this js file: pre-rendered and not rendered every time when the application loads, I just want to store the results.
renderedOutput = "string1string2" // stores the result"string1string2"
I have looked at compile options for tsc, uglify, minify. I do not know exactly what it is called what I am trying to do. Any advice would be appreciated.
I'm very new to Javascript and Protractor. Still trying to get my head around simple syntax so forgive me if I'm way off base here.
So our angular app, has a module with a factory that generates toast messages. I'd like to disable all toast messages during my E2E testing. We have a function within the factory to disable toasts. Here's some simplified code.
//the module
var module = angular.module('toast',[]);
//the factory
module.factory('tf',[function tf(){
//factory code
//the function within the module's factory
moduleFactory.enable = function(enable){
isEnabled = enable;
};
}]);
My question is, can I access that function in protractor to turn that to false?
I've been searching around and it seems that mocking is how to do it. Something similar to how you disable angular animations.
// Disable animations so e2e tests run more quickly
var disableNgAnimate = function() {
angular.module('disableNgAnimate', []).run(['$animate', function($animate) {
$animate.enabled(false);
}]);
};
browser.addMockModule('disableNgAnimate', disableNgAnimate);
However, I'm struggling with the syntax on accessing the factory's function within the module...Any help would be appreciated.
I believe I've found the solution for anyone else that may have a similar issue.
Using the executeScript function of protractor.
browser.executeScript(function()
{
return angular.element(document).injector().get('toastFactory').enableToasts(false);
});