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Get the index of the object inside an array, matching a condition
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As of 2016, you're supposed to use Array.findIndex (an ES2015/ES6 standard) for this:
a = [
{prop1:"abc",prop2:"qwe"},
{prop1:"bnmb",prop2:"yutu"},
{prop1:"zxvz",prop2:"qwrq"}];
index = a.findIndex(x => x.prop2 ==="yutu");
console.log(index);
It's supported i...
How to declare constant map
...a func you can declare it like:
romanNumeralDict := map[int]string{
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And in Go there is no such thing as a constant map. More information can be found here.
Try it out on the Go playground.
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Android multiple email attachments using Intent
I've been working on Android program to send email with an attachment (image file, audio file, etc) using Intent with ACTION_SEND . The program is working when email has a single attachment. I used Intent.putExtra(android.content.Intent.EXTRA_STREAM, uri) to attach the designated image file to th...
git push local branch with same name as remote tag
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The following command should work.
git push origin refs/heads/product-0.2:refs/heads/product-0.2
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Validating with an XML schema in Python
I have an XML file and an XML schema in another file and I'd like to validate that my XML file adheres to the schema. How do I do this in Python?
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Cleanest way to build an SQL string in Java
...thing) - instead of the awful string concat method using millions of "+"'s and quotes which is unreadable at best - there must be a better way.
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How can I set the default value for an HTML element?
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And keep continue using id attribute for <Select> and it is not good to use value attribute for <select> html element.
– Sree Rama
Mar 19 '13 at 7:48
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Download old version of package with NuGet
...ackage Manager / Package Manager Console. Then run the Install-Package command:
Install-Package Common.Logging -Version 1.2.0
See the command reference for details.
Edit:
In order to list versions of a package you can use the Get-Package command with the remote argument and a filter:
Get-Packag...
How to get the difference between two arrays of objects in JavaScript
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This works, and is maybe the best direct answer, but it would be nice to turn it into something that accepted a predicate and two lists and returned the symmetric difference of the two lists by applying the predicate appropriately. (Ext...
How to get first and last day of previous month (with timestamp) in SQL Server
I could not find the solution which gives first and last day of previous month with timestamp. Hope this helps others. If there is already a solution for this problem I apologize.
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