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Finding out whether a string is numeric or not

How can we check if a string is made up of numbers only. I am taking out a substring from a string and want to check if it is a numeric substring or not. ...
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How can I create an object and add attributes to it?

I want to create a dynamic object (inside another object) in Python and then add attributes to it. 16 Answers ...
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Plot correlation matrix into a graph

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ImportError in importing from sklearn: cannot import name check_build

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Bootstrap 3 jquery event for active tab change

...ng to fire a function when the tab changes of the bootstrap 3 tab/navbar and literally all suggestions google spat out were wrong/did not work. ...
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How to select only 1 row from oracle sql?

I want to use oracle syntax to select only 1 row from table DUAL . For example, I want to execute this query: 13 Answers ...
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How do I add multiple arguments to my custom template filter in a django template?

I looked into django's docs and book but only found example using a single argument... is it even possible? 9 Answers ...
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How do I do an OR filter in a Django query?

I want to be able to list the items that either a user has added (they are listed as the creator) or the item has been approved. ...
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Convert special characters to HTML in Javascript

Does any one know how to convert special characters to HTML in Javascript ? 26 Answers ...
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Browse the files created on a device by the iOS application I'm developing, on workstation?

I'm developing an IOS app that creates files on the device, e.g. with NSKeyedArchiver . 6 Answers ...