Append file contents to the bottom of existing file in Bash [duplicate]
This should work: cat “$API” >> “$CONFIG” You need to use the >> operator to append to a file. Redirecting with > causes the file to be overwritten. (truncated).
append
Scala: what is the best way to append an element to an Array?
You can use :+ to append element to array and +: to prepend it: 0 +: array :+ 4 should produce: res3: Array[Int] = Array(0, 1, 2, 3, 4) It’s the same as with any other implementation of Seq.
Writing to a new file if it doesn’t exist, and appending to a file if it does
Have you tried mode ‘a+’? with open(filename, ‘a+’) as f: f.write(…) Note however that f.tell() will return 0 in Python 2.x. See https://bugs.python.org/issue22651 for details.
Adding code to a javascript function programmatically
If someFunction is globally available, then you can cache the function, create your own, and have yours call it. So if this is the original… someFunction = function() { alert(“done”); } You’d do this… someFunction = (function() { var cached_function = someFunction; return function() { // your code var result = cached_function.apply(this, arguments); // use … Read more
Append text to input field
$(‘#input-field-id’).val($(‘#input-field-id’).val() + ‘more text’); <script src=”https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js”></script> <input id=”input-field-id” />
How to append rows to an R data frame
Update Not knowing what you are trying to do, I’ll share one more suggestion: Preallocate vectors of the type you want for each column, insert values into those vectors, and then, at the end, create your data.frame. Continuing with Julian’s f3 (a preallocated data.frame) as the fastest option so far, defined as: # pre-allocate space … Read more
How do I append text to a file?
How about: echo “hello” >> <filename> Using the >> operator will append data at the end of the file, while using the > will overwrite the contents of the file if already existing. You could also use printf in the same way: printf “hello” >> <filename> Note that it can be dangerous to use the … Read more
Adding dictionaries together [duplicate]
If you’re interested in creating a new dict without using intermediary storage: (this is faster, and in my opinion, cleaner than using dict.items()) dic2 = dict(dic0, **dic1) Or if you’re happy to use one of the existing dicts: dic0.update(dic1)
How to append in JavaScript? [duplicate]
// Create the element var script = document.createElement(“script”); // Add script content script.innerHTML = “…”; // Append document.head.appendChild(script); Or document.body.appendChild(script);
How can I append a string to an existing field in MySQL?
You need to use the CONCAT() function in MySQL for string concatenation: UPDATE categories SET code = CONCAT(code, ‘_standard’) WHERE id = 1;