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How do I check in JavaScript if a value exists at a certain array index?
...y, arrays in JavaScript contain array.length elements, starting with array[0] up until array[array.length - 1]. An array element with index i is defined to be part of the array if i is between 0 and array.length - 1 inclusive. If i is not in this range it's not in the array.
So by concept, arrays...
Is it valid to have a tag inside another tag?
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10
Yes, since a website is generally divided into one or more sections, use it as long as you feel ...
Create empty queryset by default in django form fields
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marianobianchimarianobianchi
6,38011 gold badge1717 silver badges2424 bronze badges
...
How to write binary data to stdout in python 3?
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answered May 26 '09 at 0:09
Benjamin PetersonBenjamin Peterson
13.8k66 gold badges2727 silver badges3434 bronze badges
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how can I see what ports mongo is listening on from mongo shell?
...,
"--dbpath",
"/data/test/r1",
"--port",
"30001"
],
"parsed" : {
"dbpath" : "/data/test/r1",
"port" : 30001,
"replSet" : "test",
"rest" : true
},
"ok" : 1
}
If you have not passed specific port options like the ones ab...
How do you turn off version control in android studio?
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+100
To disable VCS in Android Studio on a Mac do the following:
Android Studio > Preferences...
In the Preferences window, select ...
Getting a 'source: not found' error when using source in a bash script
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answered Mar 21 '09 at 23:30
gunsguns
9,49033 gold badges3535 silver badges3636 bronze badges
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What does && mean in void *p = &&abc;
...out gnus.
– Lundin
May 24 '11 at 6:40
4
What a hack. If they invent a new syntax for label pointe...
How can I access a JavaScript object which has spaces in the object's key?
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edited Aug 10 '16 at 18:08
Pardeep Jain
65k2828 gold badges131131 silver badges188188 bronze badges
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Determine if $.ajax error is a timeout
...: "/ajax_json_echo/",
type: "GET",
dataType: "json",
timeout: 1000,
success: function(response) { alert(response); },
error: function(xmlhttprequest, textstatus, message) {
if(textstatus==="timeout") {
alert("got timeout");
} else {
alert(t...