ok anyone use blob for any file image pdf is not good decide the best solution i do upload image to backend and generate URL this website is helpful if you use node.js here 0 solved get image from backend api and display in angular
Test: var string = ‘ fsajdf asdfjosa fjoiawejf oawjfoei jaosdjfsdjfo sfjos 2324234 sdf safjao j o sdlfks dflks l ‘ string.replace(/^\s+|\s+$|\s+(?=\s)/g, ”) string.trim() Results: Function Result regex regex x 1,458,388 ops/sec ±2.11% (62 runs sampled) trim trim x 7,530,342 ops/sec ±1.22% (62 runs sampled) Conclusion: trim is faster Source: https://www.measurethat.net/Benchmarks/Show/4767/0/regex-removing-whitespace-vs-trim solved Which is more faster? … Read more
The best you can do is try lots of inputs until you find one that works: x = 0 while True: x += 1 if sha256(str(x)).startswith(‘a’ * 15): return str(x) Unfortunately, you want so many a in a row that it will take decades for this method to finish. Every extra a increases the runtime … Read more
You don’t need a callback in this case, because you’re at the end of your route, so to speak. So instead, you could do something like handle it with sending an error message to your rendered page. var express = require(‘express’); var router = express.Router(); var mysql_db = require(‘../db/db_con’)(); var pool = mysql_db.init(); /* GET … Read more
Introduction The “callback is not defined” error is a common issue encountered when working with Node.js. It occurs when a callback function is not defined or is not passed as an argument to a function. This error can be difficult to debug, as it can be caused by a variety of issues. In this article, … Read more
Try something like this: var widget = JSON.parse(json_string); var window_content = widget.debug.window; widget.debug = window_content; var new_json_string = JSON.stringify(widget); edit: removed widget.debug.window = false; since replacing widget.debug will remove it, and setting it to false would make it appear again as “false”. 3 solved JSON object within JSON objects in Node.js [closed]
This is not a good idea. You are going to bloat your website / application size and it will run very slowly. You are better off putting that object either into a database or at least server side in some form and making API calls to just the data you need, when you need it. … Read more
If you only need the standard md5 algorithm, here’s how to use it in go, as noted in the documentation: import ( “fmt” “crypto/md5” “io” ) func main() { h := md5.New() io.WriteString(h, “The fog is getting thicker!”) io.WriteString(h, “And Leon’s getting laaarger!”) fmt.Printf(“%x”, h.Sum(nil)) } If you need an md5 function that returns a … Read more
You could use a negated class like: [^A-Za-z0-9\s] Btw, you also can shorten it to: [^A-Za-z\d\s] And.. if you don’t mind to preserve underscores your could use: [^\w\s] The idea of the negated class is to not match the characters in it. For this regex: [^A-Za-z0-9\s] it means: ^ —> not match the following A-Za-z … Read more
You don’t need to parse this as JSON, it is already there in an object. Just construct a string the way you want it by accessing it via Collector.stats. 1 solved Parse JSON object with Node.js
Why can’t a server be controlled without a client? It can. A server may respond to the requests sent by the client but it can also do other things. Ok, in all the years servers have existed, you’re telling me the best you can do is give me a crappy cron job if I want … Read more
React Native is a great place to start. With today’s ecosystem lead by flutter and react, Angular has unfortunately fallen behind. Both, Cloud functions are Firebase’s solution to server instances, these create short-lived functions that do complex or secure tasks such as handle payments, delete/manage users, etc. While the bulk of your app and its … Read more
I mean opA is a function, so why not opA()? Because opA is a reference to the function itself. The promise will use that reference to execute that function at a later time. Alternatively, opA() executes the function (without any arguments) now and passes the result of that function call to the promise. Since your … Read more
Using the Node Version Manager NVM $ curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.2/install.sh | bash $ nvm install node $ node -v 0 solved Installing Nodejs v8.2.1 in ubuntu 17.04
You can use ‘yarn’; first, yarn install second, yarn third, yarn run dev 1 solved why I can’t install socket.io