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Javascript 2021-10-02 04:04:02
multer()
// Installation // npm install --save multer // Usage var express = require('express') var multer = require('multer') var upload = multer({ dest: 'uploads/' }) var app = express() app.post('/profile', upload.single('avatar'), function (req, res, nex... Add solution -
Javascript 2021-09-30 21:26:04
Element implicitly has an 'any' type because expression of type 'string' can't be used to index type { }. No index signature with a parameter of type 'string' was found on type '{ develop: string; staging: string; production: string; }'.ts(7053)
const DNATranscriber = { G: 'C', C: 'G', T: 'A', A: 'U' }; export default class Transcriptor { toRna(dna: string) { const codons = [...dna]; if (!isValidSequence(codons)) { throw Error('invalid sequence'); ... Add solution -
Javascript 2021-09-28 14:09:02
call apply bind
Answer in SIMPLEST form Call invokes the function and allows you to pass in arguments one by one. Apply invokes the function and allows you to pass in arguments as an array. Bind returns a new function, allowing you to pass in a this array and any number... Add solution -
Java 2021-09-25 00:46:02
ArrayList isEmpty() method in java
import java.util.ArrayList; public class ArrayListIsEmptyMethodExample { public static void main(String[] args) { ArrayList<Integer> al = new ArrayList<Integer>(); // before checking ArrayList using isEmpty() method Sys... Add solution -
Javascript 2021-09-17 04:58:02
call apply bind in javascript examples
Answer in SIMPLEST form Call invokes the function and allows you to pass in arguments one by one. Apply invokes the function and allows you to pass in arguments as an array. Bind returns a new function, allowing you to pass in a this array and any number... Add solution -
Other 2021-09-03 09:34:01
TCL get array indices
# Tcl - Tool Command Language # Make an example array: for {set i 0} {$i < 10} {incr i} { set Arr($i) [expr $i*$i]; }; set Arr(Dave) "This Array belongs to Dave"; # Get Array index values by using the "array names <arrayName>"... Add solution -
VBA 2021-08-27 21:13:01
excel vba hide multiple sheets at once
Sheets(arr).Visible = False 'Note1: For this to work without an error, 'arr' needs to be a 1D array with a ' valid and actual sheet name in each element. 'Note2: An array cannot be used to make sheets visible if they are hidden. ' This arra... Add solution