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Javascript 2022-02-09 22:35:10
javascript multiple startswith
//There is NO possibility to passing an Array //like startsWith(["Mon" | "Tues"]) if (newStr4.startsWith("Mon") || newStr4.startsWith("Tues") || ...) //although you can use regular expression, //but performance are... Add solution -
Javascript 2022-02-09 04:55:14
router
// wiki.js - Wiki route module. var express = require('express'); var router = express.Router(); // Home page route. router.get('/', function (req, res) { res.send('Wiki home page'); }) // About page route. router.get('/about', function (req, res) { ... Add solution -
Kotlin 2022-02-05 17:40:31
kotlin function literal
val add: (Int, Int) -> Int = { i, j -> i + j } // Simple lambda expression val printAndDouble: (Int) -> Int = { println(it) // When single parameter, we can reference it using `it` it * 2 // In lambda, last expression is returned } // Anonymou... Add solution -
Other 2022-02-03 11:10:42
windows form textbox only allow numbers
private void textBox1_TextChanged(object sender, EventArgs e) { if (System.Text.RegularExpressions.Regex.IsMatch(textBox1.Text, "[^0-9]")) { MessageBox.Show("Please enter only numbers."); textBox1.Text = textBox... Add solution -
Javascript 2022-02-03 05:35:46
9.4.1.3. Update Expression¶ // Loops
/*The final component in a for loop definition is the update expression, which executes after every iteration of the loop. While this expression may be anything, it most often updates the value of the loop variable. In all of the examples we have seen s... Add solution -
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C++ 2022-02-02 23:16:49
cpp nan value
What is NaN ? NaN, acronym for “Not a Number” is an exception which usually occurs in the caseswhen an expression results in a number that can’t be represented. For example square root of negative numbers. // C++ code to demonstrat... Add solution
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