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How can I get last characters of a string

...tring method .substr() combined with the .length property. var id = "ctl03_Tabs1"; var lastFive = id.substr(id.length - 5); // => "Tabs1" var lastChar = id.substr(id.length - 1); // => "1" This gets the characters starting at id.length - 5 and, since the second argument for .substr() is omi...
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this.setState isn't merging states as I would expect

...construct a new state and then call setState() on that: var newSelected = _.extend({}, this.state.selected); newSelected.name = 'Barfoo'; this.setState({ selected: newSelected }); I've used function _.extend() function (from underscore.js library) here to prevent modification to the existing sele...
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Generating a random password in php

... Security warning: rand() is not a cryptographically secure pseudorandom number generator. Look elsewhere for generating a cryptographically secure pseudorandom string in PHP. Try this (use strlen instead of count, because count on a string is always 1): function random...
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@selector() in Swift?

... for: .touchUpInside) view.perform(#selector(UIView.insertSubview(_:aboveSubview:)), with: button, with: otherButton) The great thing about this approach? A function reference is checked by the Swift compiler, so you can use the #selector expression only with class/method pair...
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How to use glOrtho() in OpenGL?

...ou specify a Z value for your vertex's position, it will be clipped if it falls outside that range. Otherwise if it's inside that range, it will appear to have no effect on the position except for Z tests. share | ...
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In an array of objects, fastest way to find the index of an object whose attributes match a search

... This answer is great because it actually answers the question by providing the index :) – counterbeing Dec 4 '13 at 16:31 3 ...
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How to convert IPython notebooks to PDF and HTML?

... If you have LaTeX installed you can download as PDF directly from Jupyter notebook with File -> Download as -> PDF via LaTeX (.pdf). Otherwise follow these two steps. For HTML output, you should now use Jupyter in place of IPython and sele...
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Get list of databases from SQL Server

...erver and ReportServerTempDB if you have SQL Server Reporting Services installed. – Charles Hepner Mar 28 '11 at 17:02 ...
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Return index of greatest value in an array

...s say I have more than one index with the same highest value, how do I get all these indexes? – ed1nh0 Apr 15 '19 at 14:02 1 ...
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Return None if Dictionary key is not available

...ldn't work out what I was doing wrong here. – wobbily_col Aug 23 '16 at 14:28 @TimPietzcker - can you please explain y...