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How to check if object has any properties in JavaScript?
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You can loop over the properties of your object as follows:
for(var prop in ad) {
if (ad.hasOwnProperty(prop)) {
// handle prop as required
}
}
It is important to use the hasOwnProperty() method, to determine whether the object has the specified property as a direct p...
How to check whether a given string is valid JSON in Java
How do I validate a JSON string in Java? Or could I parse it using regular expressions?
19 Answers
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how to add records to has_many :through association in rails
How do I add to the Agents model for Customer ?
3 Answers
3
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HTML 5 tag vs Flash video. What are the pros and cons?
... it doesn't make it now. Flash is hard on its way out; <video> support is ubiquitous, including mobile devices. Almost anything that Flash could do, HTML can now do too. HTML won, Flash lost. If you're pondering on how to embed video in your page, just use <video> and don't give it a...
Insert/Update Many to Many Entity Framework . How do I do it?
...EF4 and new to it. I have a many to many in my project and cannot seem to work out how to insert or update. I have build a small project just to see how it should be coded.
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Android global variable
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Unfortunately it's not working for me. Please confirm that after this we'll have two <application> tags in manifest. Right? Because at some places I heard people saying that we have to add this to existing application tag....
Optimum way to compare strings in JavaScript? [duplicate]
...rototype.localeCompare
Stack Overflow - Is there a JavaScript strcmp()?
Tutorials Point: JavaScript String - localeCompare() Method
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Convert JS object to JSON string
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All current browsers have native JSON support built in. So as long as you're not dealing with prehistoric browsers like IE6/7 you can do it just as easily as that:
var j = {
"name": "binchen"
};
console.log(JSON.stringify(j));
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Set 4 Space Indent in Emacs in Text Mode
... space tabs to 4 space tabs when pressing the TAB in buffers with the major mode text-mode . I've added the following to my .emacs :
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What is the difference between Reader and InputStream?
...between Reader and InputStream?
And when to use what?
If I can use Reader for reading characters why I will use inputstream, I guess to read objects?
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