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find: missing argument to -exec
... - $2 - $3
$ find /tmp/foo -exec /tmp/echoargs {} \;
/tmp/foo - -
/tmp/foo/one - -
/tmp/foo/two - -
$ find /tmp/foo -exec /tmp/echoargs {} +
/tmp/foo - /tmp/foo/one - /tmp/foo/two
Your command has two errors:
First, you use {};, but the ; must be a parameter of its own.
Second, the command ends ...
Check if a variable is a string in JavaScript
...to use and easier to read.
Either function will handle the case DRAX mentioned... that is, they both check if (A) the variable is a string literal or (B) it's an instance of the String object. In either case, these functions correctly identify the value as being a string.
lodash / Underscore.js
...
What are OLTP and OLAP. What is the difference between them?
...an online store/website, and you want to compute things like
the "total money spent by all users"
"what is the most sold product"
This falls into the analytics/business intelligence domain, and therefore OLAP is probably more suited.
If you think in terms of "It would be nice to know how/what/h...
How to update only one field using Entity Framework?
...u are updating: if (db.Entry(user).Property(x => x.Password).GetValidationErrors().Count == 0)
– Ziul
Aug 27 '15 at 23:28
2
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If strings are immutable in .NET, then why does Substring take O(n) time?
... not persistent"?
Because when you look at operations that are typically done on strings in .NET programs, it is in every relevant way hardly worse at all to simply make an entirely new string. The expense and difficulty of building a complex persistent data structure doesn't pay for itself.
Peopl...
How to use multiple AWS Accounts from the command line?
I've got two different apps that I am hosting (well the second one is about to go up) on Amazon EC2.
7 Answers
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Find the index of a dict within a list, by matching the dict's value
...ex = next((index for (index, d) in enumerate(lst) if d["name"] == "Tom"), None)
# 1
If you need to fetch repeatedly from name, you should index them by name (using a dictionary), this way get operations would be O(1) time. An idea:
def build_dict(seq, key):
return dict((d[key], dict(d, index=...
SAML vs federated login with OAuth
...more about delegating access to something. You are basically allowing someone to "act" as you. Its most commonly used to grant access api's that can do something on your behalf.
They are two completely different things.
Some examples that might help out.
OAuth think of an twitter. Lets say y...
Why do we need break after case statements?
...s bad style to "fall through" and have multiple blocks of code execute for one case, but there may be uses for it in some situations.
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What is the current state of the art in HTML canvas JavaScript libraries and frameworks? [closed]
..., check out:
Demos (simple & complex, with code to show how they're done)
Fabric.js presentation at FalsyValues (and another one at BK.js)
Wiki on github (including FAQ)
Documentation
Google Group (ask any question there)
Fabric.js on twitter (or short questions via twitter)
Introduction to Fa...