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How do I modify the URL without reloading the page?

Is there a way I can modify the URL of the current page without reloading the page? 18 Answers ...
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Detecting an “invalid date” Date instance in JavaScript

I'd like to tell the difference between valid and invalid date objects in JS, but couldn't figure out how: 46 Answers ...
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How to change folder with git bash?

My default git folder is C:\Users\username\.git . 13 Answers 13 ...
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Accessing the index in 'for' loops?

How do I access the index in a for loop like the following? 20 Answers 20 ...
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How to output only captured groups with sed?

Is there any way to tell sed to output only captured groups? For example given the input: 8 Answers ...
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What are free monads?

I've seen the term Free Monad pop up every now and then for some time, but everyone just seems to use/discuss them without giving an explanation of what they are. So: what are free monads? (I'd say I'm familiar with monads and the Haskell basics, but have only a very rough knowledge of cat...
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Wrapping chained method calls on a separate line in Eclipse for Java

I haven't been successful in figuring out how to wrap each method call in Eclipse . For example, I have this: 7 Answers ...
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try {} without catch {} possible in JavaScript?

I have a number of functions which either return something or throw an error. In a main function, I call each of these, and would like to return the value returned by each function, or go on to the second function if the first functions throws an error. ...
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Set environment variables from file of key/value pairs

TL;DR: How do I export a set of key/value pairs from a text file into the shell environment? 33 Answers ...
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Add … if string is too long PHP [duplicate]

I have a description field in my MySQL database, and I access the database on two different pages, one page I display the whole field, but on the other, I just want to display the first 50 characters. If the string in the description field is less than 50 characters, then it won't show ... , but if...