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CSS media queries: max-width OR max-height

... Use a comma to specify two (or more) different rules: @media screen and (max-width: 995px) , screen and (max-height: 700px) { ... } From https://developer.mozilla.org/en/CSS/Media_queries/ ...In addition, you can combine multiple media queries in a comma-separated list; if any of the ...
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Shell equality operators (=, ==, -eq)

Can someone please explain the difference between = , == and -eq in shell scripting? 4 Answers ...
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How to determine if a number is a prime with regex?

... You said you understand this part, but just to emphasize, the String generated has a length equal to the number supplied. So the string has three characters if and only if n == 3. .? The first part of the regex says, "any character, zero or o...
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Does Python have a ternary conditional operator?

...rst condition is evaluated, then exactly one of either a or b is evaluated and returned based on the Boolean value of condition. If condition evaluates to True, then a is evaluated and returned but b is ignored, or else when b is evaluated and returned but a is ignored. This allows short-circuiting ...
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The difference between bracket [ ] and double bracket [[ ]] for accessing the elements of a list or

...different methods for accessing the elements of a list or data.frame: [] and [[]] . 12 Answers ...
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Logic to test that 3 of 4 are True

I want to return True if and only if 3 out of 4 boolean values are true. 27 Answers ...
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Laravel 4 Eloquent Query Using WHERE with OR AND OR?

How do I say WHERE (a = 1 OR b =1 ) AND (c = 1 OR d = 1) 11 Answers 11 ...
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Can JSON start with “[”?

... read on json.org , all JSON strings should start with { (curly brace), and [ characters (square brackets) represent an array element in JSON. ...
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Why does typeof NaN return 'number'?

...eration which return NaN: Operations with a NaN as at least one operand Indeterminate forms The divisions 0/0, ∞/∞, ∞/−∞, −∞/∞, and −∞/−∞ The multiplications 0×∞ and 0×−∞ The power 1^∞ The additions ∞ + (−∞), (−∞) + ∞ and e...
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What's the difference between passing by reference vs. passing by value?

... First and foremost, the "pass by value vs. pass by reference" distinction as defined in the CS theory is now obsolete because the technique originally defined as "pass by reference" has since fallen out of favor and is seldom used ...