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How to conditionally push an item in an observable array?

I would like to push a new item onto an observableArray , but only i<em>fem> the item is not already present. Is there any "<em>fem>ind" <em>fem>unction or recommended pattern <em>fem>or achieving this in KnockoutJS? ...
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Rails migrations: Undo de<em>fem>ault setting <em>fem>or a column

I have the problem, that I have an migration in Rails that sets up a de<em>fem>ault setting <em>fem>or a column, like this example: 4 Ans...
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'str' object does not support item assignment in Python

I would like to read some characters <em>fem>rom a string and put it into other string (Like we do in C). 7 Answers ...
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Using “label <em>fem>or” on radio buttons

When using the "label <em>fem>or" parameter on radio buttons, to be 508 compliant *, is the <em>fem>ollowing correct? 3 Answers ...
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How do you increase the max number o<em>fem> concurrent connections in Apache?

What httpd con<em>fem> settings do I need to change to increase the max number o<em>fem> concurrent connections <em>fem>or Apache? NOTE: I turned o<em>fem><em>fem> KeepAlive since this is mainly an API server. ...
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Hibernate dialect <em>fem>or Oracle Database 11g?

Is there a Hibernate dialect <em>fem>or Oracle Database 11g? Or should I use the org.hibernate.dialect.Oracle10gDialect that ships with Hibernate? ...
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Getting the parent div o<em>fem> element

This should be really simple but I'm having trouble with it. How do I get a parent div o<em>fem> a child element? 7 Answers ...
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Thread Sa<em>fem>ety in Python's dictionary

I have a class which holds a dictionary 3 Answers 3 ...
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Escape quote in web.con<em>fem>ig connection string

I have a connection string in my web con<em>fem>ig: 5 Answers 5 ...
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How to set username and password <em>fem>or SmtpClient object in .NET?

I see di<em>fem><em>fem>erent versions o<em>fem> the constructor, one uses in<em>fem>o <em>fem>rom web.con<em>fem>ig, one speci<em>fem>ies the host, and one the host and port. But how do I set the username and password to something di<em>fem><em>fem>erent <em>fem>rom the web.con<em>fem>ig? We have the issue where our internal smtp is blocked by some high security clients and...