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How to search for a string in text files?
... if 'blabla' in f.read():
print("true")
Another trick: you can alleviate the possible memory problems by using mmap.mmap() to create a "string-like" object that uses the underlying file (instead of reading the whole file in memory):
import mmap
with open('example.txt') as f:
s = mm...
Safe (bounds-checked) array lookup in Swift, through optional bindings?
...{
return indices.contains(index) ? self[index] : nil
}
}
Example
let array = [1, 2, 3]
for index in -20...20 {
if let item = array[safe: index] {
print(item)
}
}
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Twitter Bootstrap Tabs: Go to Specific Tab on Page Reload or Hyperlink
...o not know how go directly to a specific tab from an external link. For example:
24 Answers
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What is the difference between Normalize.css and Reset CSS?
...ze.css preserves useful defaults rather than "unstyling" everything. For example, elements like sup or sub "just work" after including normalize.css (and are actually made more robust) whereas they are visually indistinguishable from normal text after including reset.css. So, normalize.css does not ...
Functional, Declarative, and Imperative Programming [closed]
...ve expression is the referential transparency (RT) of its sub-expressions. All other attributes are either shared between both types of expressions, or derived from the RT.
A 100% declarative language (i.e. one in which every possible expression is RT) does not (among other RT requirements) allow th...
How to check if a string is a valid date
...te's format. Without that we can't determine which it is unless we have a sampling from one source/user, then parse using both forms and then see which form generated the most exceptions and use the other. This breaks down when parsing dates from multiple sources, especially when they're global or t...
Officially, what is typename for?
...ixing the typename keyword to the beginning of the declaration... (For example, just last week, I was declaring two iterators as members of another templated class and I had to do this)...
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How do I merge two javascript objects together in ES6+?
...n(target, sources);
where ...sources represents the source object(s).
Example:
var obj1 = {name: 'Daisy', age: 30};
var obj2 = {name: 'Casey'};
Object.assign(obj1, obj2);
console.log(obj1.name === 'Casey' && obj1.age === 30);
// true
...
Javascript roundoff number to nearest 0.5
...
rounding the num*2 is not working for all case..try any decimal like 15.27 => using your formula will give => 15 where in fact it should have returned 15.5. **** I think using toFixed will be better (num*2).toFixed()/2
– sfdx bomb
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java : convert float to String and String to float
How could I convert from float to string or string to float?
9 Answers
9
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