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Check whether an input string contains a number in javascript
...you use parse float in isNaN? I would suggest to either remove parse float from isNaN or add it to isFinite as well to be consisted.
– m.spyratos
Nov 18 '15 at 2:31
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In C#, why is String a reference type that behaves like a value type?
... to this situation where we have a type with value sematics not inheriting from System.ValueType. Thanks Ben.)
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Is JavaScript supported in an email message?
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@NicolasS.Xu Gmail removes the JavaScript from the mail before handing it to the browser. So JS does not work. I tested Gmail in Firefox 56 and Chrome 61. Also checked the code in webmaster tools, the JS code is removed.
– Christopher K.
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Read a file one line at a time in node.js?
...ere is a stable readline core module. Here's the easiest way to read lines from a file, without any external modules:
const fs = require('fs');
const readline = require('readline');
async function processLineByLine() {
const fileStream = fs.createReadStream('input.txt');
const rl = readline.c...
Fastest way to check a string contain another substring in JavaScript?
... way faster with regular expressions.
Update 2018:
Just to save people from running the tests themselves, here are the current results for most common browsers, the percentages indicate performance increase over the next fastest result (which varies between browsers):
Chrome: indexOf (~98% fast...
C++, variable declaration in 'if' expression
... found seems perfectly reasonable - it prevents these kinds of ambiguities from happening.
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AJAX POST and Plus Sign ( + ) — How to Encode?
...t contains the url encoded data.
For a GET request you can retrieve this from the URI. $_SERVER['REQUEST_URI'] or $_SERVER['QUERY_STRING']. For a urlencoded POST, file_get_contents('php://stdin')
NB:
decode() only works for single byte encoded characters. It will not work for the full UTF-8 ran...
ASP.NET MVC - Attaching an entity of type 'MODELNAME' failed because another entity of the same type
...h a custom join table in a disconnected app. Even with the entity grabbed from the database, I was getting referential errors, etc. I was using "context.Entry(score).State = System.Data.Entity.EntityState.Modified;" but this finally worked! Thank you!!
– firecape
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Input text dialog Android
...= "";
Within the OnClickListener of your button (or in a function called from there):
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Title");
// Set up the input
final EditText input = new EditText(this);
// Specify the type of input expected; this, for example, s...
Why is a div with “display: table-cell;” not affected by margin?
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Cause
From the MDN documentation:
[The margin property] applies to all elements except elements with
table display types other than table-caption, table and inline-table
In other words, the margin property is not applicable...