Iam trying to get the current Filepath of my After Effects project (not Jsx)
var path=app.project['file'];
this variable "path" is giving me the a current FileObject name but it is a File-Object not a String. I need the alert as String. Or is there even a better way to get the Path as String?
Take a look at the File Object in the Object Model Viewer within Extendscript Toolkit or here.
if(app.project.file !== null){
var path = app.project.file.fsName;
$.writeln(path);
}
Related
Im hoping someone might be able to help with this.
Ive got a text file on the server loaded with the following
var templateCache = '{"templateCache":[ {"test":"123"} ]}';
as its a text file, we are opening it and are aiming to strip out
var templateCache = '----';
so we can convert the string into an object using JSON.stringify().
We are making use of Rhino.js as the server so we can only use vanilla JS functions to process this string into something usable for our app.
Back story
The file is included in the main function of our little app, but for us to manipulate this set of variables we are opening it, converting it into a JSON object and applying whats neccessary to it and then saving it back as the variable so it doesnt impact our app. but I cant figure out how to strip out the var templateCache = ''; and leave the middle content in place
and im not sure what to look for via google to get the thing into order
/var templateCache = '(.+)';$/m
The regex feature you are looking for is called 'capturing'. It's normally implemented with () parentheses in most languages, js included.
What this example regex does is it 'captures' and remembers everything between the () parentheses and makes it available for more processing.
Here's a quick example for your case:
var fileContent = 'var templateCache = \'{"templateCache":[ {"test":"123"} ]}\';'
var regex = /var templateCache = '(.+?)';$/m;
var matchedGroups = regex.exec(fileContent);
console.log('Result String: ' + matchedGroups[1]);
console.log(JSON.parse(matchedGroups[1]));
Edit: changed the regex to handle cases where the file has more '; substrings on the same line after the json part.
I am new to Node Js. I need to include a profile image for users. I get request of image in base64 from IOS app. I need to store it in images folder and save the image path in mongodb database.
I have used the following code,
var bitmap = new Buffer(req.body.profile_image, 'base64');
// write buffer to file
fs.writeFileSync("images/example.jpg", bitmap);
where req.body.profile_image is a base64 image.
I am getting the following error,
TypeError: First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.
req.body.profile_image value will be,
+MZScHeJQ9Cz5dfxnEmIMHWMZyZYnYx8Rrhj0HbtfGUanv5w3UHUyADbiGsKJxeM1yV4uGwBS7cYlAec1w0AX6xg2A1O854UF8OS6PAP1MtzkeFnrNlD41U8XFeGrp1fn3jRMUs8sqS61umSS2rR2NDhppjZ4OvnOWBAq6X+sQNkhKkfZOdYsZOpz8fWIQb6wQ/GchVCgfZko4PMDg1DSumausG6o+2E6wKLLjKReUaHEQXKJV8h85XEKN4p/WEBvTHmmJ/IN178YJVgrGmfOScAuBPp+sggGA7/wC1kgbDiacbGABOcCLHVRpMuBQh5Xn4xqARF03pwkJT23LhxGLiSGp8mCVWDrzPf3iwp4C3nDSg2VUfNwgDvm6vrIiFJvp8ZHIdjoFx8BX0OH0+8TVii3GAKKc2kjz7dYqUCdsuMOm2hrr+h//Z
Please help.
Edit: This code worked for me. Maybe the error happens later.
var fs = require("fs");
var image = "+MZScHeJQ9Cz5dfxnEmIMHWMZyZYnYx8Rrhj0HbtfGUanv5w3UHUyADbiGsKJxeM1yV4uGwBS7cYlAec1w0AX6xg2A1O854UF8OS6PAP1MtzkeFnrNlD41U8XFeGrp1fn3jRMUs8sqS61umSS2rR2NDhppjZ4OvnOWBAq6X+sQNkhKkfZOdYsZOpz8fWIQb6wQ/GchVCgfZko4PMDg1DSumausG6o+2E6wKLLjKReUaHEQXKJV8h85XEKN4p/WEBvTHmmJ/IN178YJVgrGmfOScAuBPp+sggGA7/wC1kgbDiacbGABOcCLHVRpMuBQh5Xn4xqARF03pwkJT23LhxGLiSGp8mCVWDrzPf3iwp4C3nDSg2VUfNwgDvm6vrIiFJvp8ZHIdjoFx8BX0OH0+8TVii3GAKKc2kjz7dYqUCdsuMOm2hrr+h//Z";
var bitmap = new Buffer(image, 'base64');
fs.writeFileSync("images/example.jpg", bitmap);
If you said
console.log(req.body.profile_image)
rather than
console.log(typeof req.body.profile_image)
It would cast what ever data is in req.body.profile_image to a string before printing. Its possible you just forgot the 'typeof' when commenting, but if you didn't add the 'typeof' you can't be certain that it contains a string. There's more than one constructor to Buffer and it may be using the wrong one.
For the lolz try:
Buffer.from(String.fromCharCode.apply(null, new Uint16Array(req.body.profile_image)), "base64")
What gets assigned to req.body.profile_image?
The first argument to writeFileSync is a string, so it can't be causing the type error. Can you be more specific as to what is contained in req.body.profile_image?
On a side note, although I think this is unrelated to your problem, instantiating a Buffer with the 'new' keyword is deprecated.
Maybe using Buffer.from(...) will move you in the direction of a solution.
Im new to Node.js and I'm trying to learn alone. I have a simple task to do the following:
-read a file (supplied buy the first command line argument).
-print the number of lines in the file.
-I am using the readFileSync method.
The code is running but the output is weird. I tried printing every statement, and I think the problem is in the reading of the data. Can anyone please tell me where I'm wrong?
function numLines(){
var fs = require('fs');
var num = 0;
var contents = fs.readFileSync(process.argv[0]);
console.log(contents.toString());
return num;
}
disregard the return statement, please just focus on the readFileSync. While printing the contents, the text printed is full of weird characters, as if the reading is going wrong
var contents = fs.readFileSync(process.argv[0]);
process.argv[0] is not the first argument passed to your script, actually. It's the command node. The second item is the filename of the your script, which is passed to node, assuming you're calling it as node myscript.js somefile.txt. You need to get the third item: process.argv[2]
See https://nodejs.org/api/process.html#process_process_argv
Without an encoding, readFile and readFileSync give you back a raw buffer you have to interpret in the correct encoding yourself (rather than just calling toString on it). From the docs:
If no encoding is specified, then the raw buffer is returned.
So either specify the encoding of the file in the readFileSync call, or use a buffer methods to read it using a given encoding. The Buffer docs talk about the encodings supported by Node, such as utf8.
So for instance, if your file is in UTF-8, you'd use:
function numLines(){
var fs = require('fs');
var num = 0;
var contents = fs.readFileSync(process.argv[0], {encoding: 'utf8'});
console.log(contents.toString());
return num;
}
More: The Absolute Minimum Every Software Developer Absolutely, Positively Must Know About Unicode and Character Sets (No Excuses!)
İ tried to do it simply by assign the files of the input into a variable:
var files = document.getElementById("upload").files;
but there seems to be a connection created with this assign so every time the input changes the variable changes too.
so how can I do that without this connection?
You just want the filenames? Then just get the filenames :
var files = [],
upload = document.getElementById("upload");
upload.onchange = function() {
for (var i=0;i<upload.files.length;i++) {
files.push(upload.files[i].fileName);
}
}
??? No "inherited" behaviour from FileList, but I assume I misunderstand.
That's because it's being used as a reference to the files property. If you don't know what that means, do some reading on Google for "pass by value vs pass by reference."
What you need to do to copy the value unfortunately is something like this:
var files = (function() { return document.getElementById("upload").files; })();
In order to copy the value with no reference to the .files property.
The simplistic answer of what is happening here is that var files references the memory address of the files property of that DOM element. It looks to you like it's copying the value when in fact it is pointing to that memory slot and access it is just following a trail to whatever is stored there and accessing it.
I have modified #Mike's answer and came to a result where it actually works. I am writing the answer for a single file which can be converted to support multiple files.
var file = document.getElementById("upload").files[0]
this will store the file and not the refrence to the file hence if the value of upload file type changes the value in file remains unchanged.
Hope this might help someone else
I'm working on a Firefox extension that receives binary images as ArrayBuffers of uint8_t.
In my extension I load a .dll file that has a function that I need to use on that received image. The function takes a ctype.uint8_t.ptr parameter and returns a ctype.uint8_t.ptr value.
I can't seem to find a way of converting the ArrayBuffer to this particular ctype so that I can pass it along to the function. Is there a correct way to do this?
Using ImplicitConvert() gives an Error: argument must be a nonnegative integer.
You should be able to do just:
var a = new Uint8Array(1<<10);
var ptr = new ctypes.uint8_t.ptr(a.buffer);
The stuff is not documented it seems, but there are some tests that demonstrate this.