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HTML text input allow only numeric input
...
} else {
this.value = "";
}
});
});
}
You can now use the setInputFilter function to install an input filter:
setInputFilter(document.getElementById("myTextBox"), function(value) {
return /^\d*\.?\d*$/.test(value); // Allow digits and '.' only, using a RegExp
});
Se...
npm throws error without sudo
...llowing instructions on this page.
Install Node via NVM: nvm install node
Now npm link, npm install -g will no longer require you to be root.
Edit: See also https://docs.npmjs.com/getting-started/fixing-npm-permissions
Solution 2: Install with webi
webi fetches the official node package from the n...
Rails: call another controller action from a controller
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I know I should not do that, but this is not part of my application it's just for testing and evaluating my application.
– ddayan
Apr 24 '11 at 22:37
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How to express infinity in Ruby?
...nteger and that value and it seems to be working fine. I am just wondering now if this is safe!
– Amokrane Chentir
Apr 25 '11 at 12:38
1
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Convert JSON to Map
...
I like google gson library.
When you don't know structure of json. You can use
JsonElement root = new JsonParser().parse(jsonString);
and then you can work with json. e.g. how to get "value1" from your gson:
String value1 = root.getAsJsonObject().get("data").getAsJ...
Swift class introspection & generics
...
Here's how to use NSClassFromString. You have to know the superclass of what you're going to end up with. Here are a superclass-subclass pair that know how to describe themselves for println:
@objc(Zilk) class Zilk : NSObject {
override var description : String {return ...
What is the purpose of flush() in Java streams?
...ust Flush It. Calls to writer.flush() say, "send whatever's in the buffer, now!
reference book: https://www.amazon.com/Head-First-Java-Kathy-Sierra/dp/0596009208
pages:453
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improve this an...
Share variables between files in Node.js?
...'/../config/environments/' + process.env.NODE_ENV + '.json') || {});
And now you can get the data like this:
// File: server.js
...
var config = require('./config/config');
...
mailer.setTransport(nodemailer.createTransport(config.mailerType, config.mailerConfig));
Scenario 2: Use a constants f...
How to test if string exists in file with Bash?
...(There was an error in my examples; it still used some regex syntax. Fixed now.)
– Thomas
Jan 24 '11 at 17:04
4
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Generate random string/characters in JavaScript
...at I invented the solution but I've been using it in my projects for years now. And it has nothing to do with the comment you mentioned. And I am quite sure that in SO what matters is the most useful information in the right place and even if it already exists in some other place, too. Luckily, it s...