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How do I find out if first character of a string is a number?

...N : Suppose that you have a String like this : private val phoneNumber="9121111111" At first you should get the first one : val firstChar=phoneNumber.slice(0..0) At second you can check the first char that return a Boolean : firstChar.isInt() // or isFloat() ...
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Get position of UIView in respect to its superview's superview

... iAjiAj 3,28911 gold badge2727 silver badges3131 bronze badges add a comme...
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Is there any difference between the `:key => “value”` and `key: “value”` hash notations?

...so use anything as a key with => so you can do this: h = { C.new => 11 } h = { 23 => 'pancakes house?' } but you can't do this: h = { C.new: 11 } h = { 23: 'pancakes house?' } The JavaScript style (key: value) is only useful if all of your Hash keys are "simple" symbols (more or less ...
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Python memory usage of numpy arrays

... Gabriel 28.9k5050 gold badges171171 silver badges311311 bronze badges answered Aug 2 '12 at 19:24 GWWGWW 37.7...
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Android - Writing a custom (compound) component

... | edited Sep 25 '09 at 11:19 answered Sep 25 '09 at 11:07 ...
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Can I inject a service into a directive in AngularJS?

... Tyrone Wilson 3,09311 gold badge2424 silver badges3333 bronze badges answered Mar 22 '13 at 14:59 grendiangrendian ...
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Restrict varchar() column to specific values?

... Adam 1,32711 gold badge1515 silver badges2222 bronze badges answered Mar 14 '10 at 7:05 Ashish GuptaAshish Gupt...
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Useful example of a shutdown hook in Java?

... | edited Sep 23 '11 at 2:48 trashgod 194k2424 gold badges207207 silver badges885885 bronze badges ...
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JSR-303 @Valid annotation not working for list of child objects

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What is the maximum characters for the NVARCHAR(MAX)?

... Community♦ 111 silver badge answered Jun 21 '12 at 13:22 JiNishJiNish 13366 bronze badges...