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Dealing with float precision in Javascript [duplicate]
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From this post: How to deal with floating point number precision in JavaScript?
You have a few options:
Use a special datatype for decimals, like decimal.js
Format your result to some fixed number of significant digits, li...
if (key in object) or if(object.hasOwnProperty(key)
... returns true always, if property is accessible by the object, directly or from the prototype
hasOwnProperty() returns true only if property exists on the instance, but not on its prototype
If we want to check that some property exist on the prototype, logically, we would say:
console.log(('name'...
npm global path prefix
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Blindly following the advice from someone on the internets is not a good idea.
– Volte
Aug 23 '15 at 14:43
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Why do we usually use || over |? What is the difference?
... If you add in about possible null reference exception using | from @Jeremy's comment then this is great answer.
– Peter Kelly
Aug 18 '11 at 7:55
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How to check with javascript if connection is local host?
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if launching static html in browser, eg from location like file:///C:/Documents and Settings/Administrator/Desktop/ detecting "localhost" will not work. location.hostname will return empty string. so
if (location.hostname === "localhost" || location.hostname === "...
What is the difference between parseInt(string) and Number(string) in JavaScript? [duplicate]
...of radix that Number() doesn't know of and parseInt() may indirectly guess from the given string (that can cause weird results sometimes).
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follo...
Django: Why do some model fields clash with each other?
... two foreign keys to User. Django automatically creates a reverse relation from User back to GameClaim, which is usually gameclaim_set. However, because you have two FKs, you would have two gameclaim_set attributes, which is obviously impossible. So you need to tell Django what name to use for the r...
Apache redirect to another port
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I wanted to do exactly this so I could access Jenkins from the root domain.
I found I had to disable the default site to get this to work. Here's exactly what I did.
$ sudo vi /etc/apache2/sites-available/jenkins
And insert this into file:
<VirtualHost *:80>
ProxyP...
Android Text over image
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You may want to take if from a diffrent side: It seems easier to have a TextView with a drawable on the background:
<TextView
android:id="@+id/text"
android:background="@drawable/rounded_rectangle"
android:l...
How to concatenate multiple lines of output to one line?
... through php exec function. It was ignoring tr, and just giving last match from grep. | xargs worked.
– Adarsha
Mar 26 '15 at 17:07
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