Tutorial by Examples: io

try/catch try..catch blocks can be used to control the flow of a program where Exceptions may be thrown. They can be caught and handled gracefully rather than letting PHP stop when one is encountered: try { // Do a bunch of things... throw new Exception('My test exception!'); } catch (E...

One common pitfall when using dictionaries is to access a non-existent key. This typically results in a KeyError exception mydict = {} mydict['not there'] Traceback (most recent call last): File "<stdin>", line 1, in <module> KeyError: 'not there' One way to avoid...

The function rand() can be used to generate a pseudo-random integer value between 0 and RAND_MAX (0 and RAND_MAX included). srand(int) is used to seed the pseudo-random number generator. Each time rand() is seeded wih the same seed, it must produce the same sequence of values. It should only be see...

6 Exceptions are to synchronous code what rejections are to promise-based asynchronous code. If an exception is thrown in a promise handler, its error will be automatically caught and used to reject the promise instead. Promise.resolve(5) .then(result => { throw new Error("I ...

Browse to File > New > Solution to bring you up the new project dialog Select Single View App and press Next Configure your app by setting your app name and organization ID, and press Next: Set your Project name and Solution name, or leave as the default name. Click Create to create...

Adapted from the tutorial, this uses the SwiftyDropbox library to download a file, with a progress callback on the download method to get progress information: // Download a file let destination : (NSURL, NSHTTPURLResponse) -> NSURL = { temporaryURL, response in let fileManager = NSFileMan...

curl -X POST https://api.dropboxapi.com/2/users/get_current_account \ --header "Authorization: Bearer <ACCESS_TOKEN>" <ACCESS_TOKEN> should be replaced with your access token.

#include <stdio.h> #include <curl/curl.h> int main (int argc, char *argv[]) { CURL *curl; CURLcode res; /* In windows, this will init the winsock stuff */ curl_global_init(CURL_GLOBAL_ALL); /* get a curl handle */ curl = curl_ea...

This uses the Dropbox Python SDK to get the user's account information from the Dropbox API. import dropbox dbx = dropbox.Dropbox("<ACCESS_TOKEN>") dbx.users_get_current_account() <ACCESS_TOKEN> should be replaced with the access token.

<?php $headers = array("Authorization: Bearer <ACCESS_TOKEN>", "Content-Type: application/json"); $ch = curl_init('https://api.dropboxapi.com/2/users/get_space_usage'); curl_setopt($ch, CURLOPT_HTTPHEADER, $headers); curl_setopt($ch, CURLOPT_POS...

<?php $parameters = array('path' => '','include_deleted' => true,'recursive' => true); $headers = array('Authorization: Bearer <ACCESS_TOKEN>', 'Content-Type: application/json'); $curlOptions = array( CURLOPT_HTTPHEADER => $headers, C...

Dropbox.authorizedClient!.files.getMetadata(path: "/test.jpg", includeMediaInfo: true).response { response, error in if let result = response as? Files.FileMetadata { print(result.name) if result.mediaInfo != nil { switch result.mediaInfo! as Files.Med...

curl -X POST https://api.dropboxapi.com/2/files/get_metadata \ --header "Authorization: Bearer <ACCESS_TOKEN>" \ --header "Content-Type: application/json" \ --data "{\"path\": \"/test.jpg\",\"include_media_info\": true}&quot...

A replacer function can be used to filter or transform values being serialized. const userRecords = [ {name: "Joe", points: 14.9, level: 31.5}, {name: "Jane", points: 35.5, level: 74.4}, {name: "Jacob", points: 18.5, level: 41.2}, {name: "Jessie",...

A reviver function can be used to filter or transform the value being parsed. 5.1 var jsonString = '[{"name":"John","score":51},{"name":"Jack","score":17}]'; var data = JSON.parse(jsonString, function reviver(key, value) { return ke...

Template literals are a special type of string literal that can be used instead of the standard '...' or "...". They are declared by quoting the string with backticks instead of the standard single or double quotes: `...`. Template literals can contain line breaks and arbitrary expression...

Supplying pow() with 3 arguments pow(a, b, c) evaluates the modular exponentiation ab mod c: pow(3, 4, 17) # 13 # equivalent unoptimized expression: 3 ** 4 % 17 # 13 # steps: 3 ** 4 # 81 81 % 17 # 13 For built-in types using modular exponentiation is only possible...

You have up to 5 sources for git configuration: 6 files: %ALLUSERSPROFILE%\Git\Config (Windows only) (system) <git>/etc/gitconfig, with <git> being the git installation path. (on Windows, it is <git>\mingw64\etc\gitconfig) (system) $XDG_CONFIG_HOME/git/config (Linux/Mac on...

Using the strtotime() function combined with date() you can parse different English text descriptions to dates: // Gets the current date echo date("m/d/Y", strtotime("now")), "\n"; // prints the current date echo date("m/d/Y", strtotime("10 September 2...

A Swift String is made of Unicode code points. It can be decomposed and encoded in several different ways. let str = "ที่👌①!" Decomposing Strings A string's characters are Unicode extended grapheme clusters: Array(str.characters) // ["ที่", "👌", "①", ...