How to write binary data to a file?
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I am trying to do toDataUrl() of canvas, and it gives base64 data. I want to store it as a png. I can get the converted binary data from base64, but I cant write it to a file using NodeJs service. If I write base64 data directly to the file, all data can be written, but it cannot be a png right?. I want to store the binary data to be stored. How to do it? Thanks Code snippet: ` var strData = this.drawingCanvas.getContext().canvas.toDataURL(); var data = strData.replace(/^data:image\/\w+;base...
Answer:
You are making things much harder than they need to be. The node Buffer object takes base64 as input...
Kantesh at Stack Overflow Mark as irrelevant Undo
Other solutions
I'm trying to create a macro on an excel file to write/input data into another file. I want it in such a way that the file to be written is no longer going to be opened and data input will just be saved on that particular file right away.
Answer:
The following Sub will export the worksheet or selected cell to a text/csv file Public Sub ExportToTextFile...
CuBe_Roo... at Yahoo! Answers Mark as irrelevant Undo
I want to read data from a .ser file and then write that data in the value of a text field in a JSP page
rita_frn... at Yahoo! Answers Mark as irrelevant Undo
I need to code a Java-Servlet that accept data from a HTML form and write them into a CSV (Comma Separated Value) text file for later import into a database. And also I need to import these text file values in to a spreadsheet package and making sure...
Gimhani at Yahoo! Answers Mark as irrelevant Undo
How can I get Flash to write data to an external file? Is really the only decent method to create a server-side solution which does the actual work? Either way, pointers to examples would be much appreciated.
Answer:
Having web applications (anything - not just flash) write to local files would be a major security problem...
warhol at Ask.Metafilter.Com Mark as irrelevant Undo
This is my linked list..Please somebody help me to make a file of this program.. #include <stdlib.h> #include <stdio.h> #include <string.h> int serial=1; //initializing a global variable void insert_newstudent (); //Function to add...
Answer:
void writelist(struct student *H) { FILE *op=fopen("filename", "w"); while(H) {...
Bakhtawa... at Yahoo! Answers Mark as irrelevant Undo
how can i read data from a txt file by arrays and find out the highest value and lowest
Answer:
int Val; int maxVal; while(!datFile.eof() ) { datFile >> Val; maxVal = Val; if (Val > maxVal...
Abys at Yahoo! Answers Mark as irrelevant Undo
The normal string.value of (data member) does not work. How else can I proceed?
Answer:
Define an object of PrintWriter class with arg as file name for e.g. PrintWriter out=new PrintWriter...
Kushagra Varshney at Quora Mark as irrelevant Undo
Write a program that reads a set of numbers from a data file (standard.dat) and count them. Extensions: ·Write and call three value-returning functions to calculate the mean, variance, and standard deviation of the set of numbers. The standard...
Answer:
Please put some code together that is an attempt to perform this operation. Then come back and ask for...
Dominic A at Yahoo! Answers Mark as irrelevant Undo
Write a program to complete the following tasks and record the outputs to a data file named “transcript.dat". Headings (CourseNumber, Credit Hours and LetterGrade / NumericalGrade ) should be included in the outputs. (1) Read John’s...
Parth at Yahoo! Answers Mark as irrelevant Undo
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