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Do I have to guard against SQL injection if I used a dropdown?

...pect. $possibleOptions = array('All', 'Large', 'Medium', 'Small'); if(in_array($_POST['size'], $possibleOptions)) { // Expected } else { // Not Expected } Then use mysqli_* if you are using a version of php >= 5.3.0 which you should be, to save your result. If used correctly this wil...
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What is lexical scope?

...ipt our choices for scoping are: as-is (no scope adjustment) lexical var _this = this; function callback(){ console.log(_this); } bound callback.bind(this) It's worth noting, I think, that JavaScript doesn't really have dynamic scoping. .bind adjusts the this keyword, and that's close, but not t...
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Is it possible to view RabbitMQ message contents directly from the command line?

... You should enable the management plugin. rabbitmq-plugins enable rabbitmq_management See here: http://www.rabbitmq.com/plugins.html And here for the specifics of management. http://www.rabbitmq.com/management.html Finally once set up you will need to follow the instructions below to install...
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Code coverage with Mocha

...ou're running a locally installed version of mocha, try istanbul cover node_modules/mocha/bin/_mocha. – Eric McCarthy May 20 '13 at 4:45 102 ...
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how do you filter pandas dataframes by multiple columns

...er and that depend on more than one column, you can use: df = df[df[['col_1','col_2']].apply(lambda x: f(*x), axis=1)] where f is a function that is applied to every pair of elements (x1, x2) from col_1 and col_2 and returns True or False depending on any condition you want on (x1, x2). ...
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What is the most “pythonic” way to iterate over a list in chunks?

... the recipes section of Python's itertools docs: from itertools import zip_longest def grouper(iterable, n, fillvalue=None): args = [iter(iterable)] * n return zip_longest(*args, fillvalue=fillvalue) Example In pseudocode to keep the example terse. grouper('ABCDEFG', 3, 'x') --> 'ABC...
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SQLAlchemy default DateTime

...olumn, Integer, DateTime from sqlalchemy.ext.declarative import declarative_base Base = declarative_base() class Test(Base): __tablename__ = 'test' id = Column(Integer, primary_key=True) created_date = Column(DateTime, default=datetime.datetime.utcnow) ...
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Is there a ceiling equivalent of // operator in Python?

...sy) floating-point conversion. Here's a demonstration: >>> from __future__ import division # a/b is float division >>> from math import ceil >>> b = 3 >>> for a in range(-7, 8): ... print(["%d/%d" % (a, b), int(ceil(a / b)), -(-a // b)]) ... ['-7/3', -2, ...
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Get Android Phone Model programmatically

...: Build.BOARD = MSM8974 Build.BOOTLOADER = s1 Build.BRAND = Sony Build.CPU_ABI = armeabi-v7a Build.CPU_ABI2 = armeabi Build.DEVICE = D5503 Build.DISPLAY = 14.6.A.1.236 Build.FINGERPRINT = Sony/D5503/D5503:5.1.1/14.6.A.1.236/2031203XXX:user/release-keys Build.HARDWARE = qcom Build.HOST = BuildHost B...
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How do you run a SQL Server query from PowerShell?

... would use the following. It is what we use at my company. $ServerName = "_ServerName_" $DatabaseName = "_DatabaseName_" $Query = "SELECT * FROM Table WHERE Column = ''" #Timeout parameters $QueryTimeout = 120 $ConnectionTimeout = 30 #Action of connecting to the Database and executing the query a...