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E11000 duplicate key error index in mongodb mongoose
Following is my user schema in user.js model -
25 Answers
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Can hash tables really be O(1)?
... your runtime depends on the dataset you're running on.
Consider the following pseudocode of the get method of a hash table. Here I'm assuming we handle collision by chaining, so each entry of the table is a linked list of (key,value) pairs. We also assume the number of buckets m is fixed but is O(...
Error 'LINK : fatal error LNK1123: failure during conversion to COFF: file invalid or corrupt' after
...en I try to use Visual Studio 2010 to compile C++ projects, I get the following error message:
26 Answers
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“register” keyword in C?
...to keep variable in memory rather than in register.
So using register you win nothing (anyway compiler will decide for itself where to put the variable) and lose the & operator - no reason to use it.
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Open a file from Cygwin
Is there an equivalent to OSX open command in cygwin. open opens a file with the default application for that type.
7 A...
jquery input select all on focus
...$("input[type=text]").focus(function() {
var save_this = $(this);
window.setTimeout (function(){
save_this.select();
},100);
});
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Eclipse hangs on loading workbench
...T ALL YOUR PROJECTS, THERE ARE LESS DESTRUCTIVE ANSWERS HERE
Try the following:
Delete the .metadata folder in your local workspace (this is what worked for me). It seems that it contains a .LOCK file that if not properly closed, prevents eclipse from starting properly. On Unix based systems you ...
Java and SQLite [closed]
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Cross-platform JDBC driver which uses embedded native SQLite libraries on Windows, Linux, OS X, and falls back to pure Java implementation on other OSes: https://github.com/xerial/sqlite-jdbc (formerly zentus)
Another Java - SWIG wrapper. It only works on Win32. http://rodolfo_3.tripod.com/index.ht...
How do you post to an iframe?
...this
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var el = document.getElementById('targetFrame');
var doc, frame_win = getIframeWindow(el); // getIframeWindow is defined below
if (frame_win) {
doc = (window.contentDocument || window.document);
}
if (doc) {
doc.forms[0].someInputName.value = someValue;
...
doc.forms[0].submit()...
What is the max size of localStorage values?
...and this answer works perfectly fine on both vanilla Chrome and Firefox on Win10, giving size=5000.
– A. Chiesa
Apr 28 at 6:43
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