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schema builder laravel migrations unique on two columns
How can I set a unique constraints on two columns?
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How to create a SQL Server function to “join” multiple rows from a subquery into a single delimited
To illustrate, assume that I have two tables as follows:
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How to group dataframe rows into list in pandas groupby?
I have a pandas data frame df like:
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JavaScript object: access variable property by name as string [duplicate]
If I have a javascript object that looks like below
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Passing a dictionary to a function as keyword parameters
I'd like to call a function in python using a dictionary.
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How can you run a command in bash over until success
I have a script and want to ask the user for some information, the script cannot continue until the user fills in this information. The following is my attempt at putting a command into a loop to achieve this but it doesn't work for some reason.
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Casting to string in JavaScript
I found three ways to cast a variable to String in JavaScript.
I searched for those three options in the jQuery source code, and they are all in use .
I would like to know if there are any differences between them:
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How to print HTML content on click of a button, but not the page? [duplicate]
I want to print some HTML content, when the user clicks on a button. Once the user clicks on that button, the print dialog of the browser will open, but it will not print the webpage. Instead, it will print the some other HTML content which is not displayed on the page.
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registerForRemoteNotificationTypes: is not supported in iOS 8.0 and later
When trying to register for push notifications under iOS 8.x:
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Handling Touch Event in UILabel and hooking it up to an IBAction
Ok, so I have a UILabel created in interface builder that displays some some default text of "tap to begin".
4 Answers...