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Set a persistent environment variable from cmd.exe

... value) Dim wu Set wu = wsh.Environment(typey) wui = wu.Item(vary) Select Case action Case "ls" WScript.Echo wui Case "del" On Error Resume Next wu.remove(vary) On Error Goto 0 Case "set" wu.Item(vary) = value Case "add" If wui = "" Then ...
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How to remove unused imports from Eclipse

...rences → Java → Editor → Save Actions. Check the option "Perform the selected actions on save". Check the option "Organize imports". Now every time you save your classes, eclipse will take care of removing the unused imports. ...
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An invalid form control with name='' is not focusable

...ngs that we don't want to validate. $(["input:hidden, textarea:hidden, select:hidden"]).attr("disabled", true); // If HTML5 Validation is available let it run. Otherwise prevent default. if (this.el.checkValidity && !this.el.checkValidity()) { // Re-enable things that we...
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python pandas remove duplicate columns

...,False,True]. Pandas allows one to index using boolean values whereby it selects only the True values. Since we want to keep the unduplicated columns, we need the above boolean array to be flipped (ie [True, True, False] = ~[False,False,True]) Finally, df.loc[:,[True,True,False]] selects only the...
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Can the Android layout folder contain subfolders?

...you backed everything up from step 1!!!) Right click the res directory and select new > directory. Name this new directory "layouts". (This can be whatever you want, but it will not be a 'fragment' directory or 'activity' directory, that comes later). Right click the new "layouts" directory and s...
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sqlalchemy IS NOT NULL select

How can I add the filter as in SQL to select values that are NOT NULL from a certain column ? 3 Answers ...
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sql “LIKE” equivalent in django query

... = table.objects.filter(string__contains='pattern') The SQL equivalent is SELECT ... WHERE string LIKE '%pattern%'; share | improve this answer | follow | ...
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What is Func, how and when is it used

...ied to any particular functionality. For example, consider the Enumerable.Select extension method. The pattern is: for every item in a sequence, select some value from that item (e.g., a property) and create a new sequence consisting of these values. The placeholder is: some selector function tha...
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“CASE” statement within “WHERE” clause in SQL Server 2008

... Try the following: select * From emp_master where emp_last_name= case emp_first_name when 'test' then 'test' when 'Mr name' then 'name' end share | ...
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Show data on mouseover of circle

...and you don't need the mousehandler. The code would be something like vis.selectAll("circle") .data(datafiltered).enter().append("svg:circle") ... .append("svg:title") .text(function(d) { return d.x; }); If you want fancier tooltips, you could use tipsy for example. See here for an ex...