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How to set commands output as a variable in a batch file
Is it possible to set a statement's output of a batch file to a variable, for example:
7 Answers
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Converting user input string to regular expression
...ction they want to test with (e.g. search, match, replace, etc.) via radio button and the program will display the results when that function is run with the specified arguments. Naturally there will be extra text boxes for the extra arguments to replace and such.
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How to keep one variable constant with other one changing with row in excel
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Use this form:
=(B0+4)/$A$0
The $ tells excel not to adjust that address while pasting the formula into new cells.
Since you are dragging across rows, you really only need to freeze the row part:
=(B0+4)/A$0
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What are the most-used vim commands/keypresses?
I'm a Ruby programming trying to switch from Textmate to MacVim, and I'm having trouble wading through the gargantuan lists of things you can do in VIM and all of the keypresses for them. I'm tired of hearing "You can use 'I' for inserting text, or 'a' for appending text after the character, or 'A' ...
How to plot multiple functions on the same figure, in Matplotlib?
...ure you will have to do:
from numpy import *
import math
import matplotlib.pyplot as plt
t = linspace(0, 2*math.pi, 400)
a = sin(t)
b = cos(t)
c = a + b
plt.plot(t, a, 'r') # plotting t, a separately
plt.plot(t, b, 'b') # plotting t, b separately
plt.plot(t, c, 'g') # plotting t, c separately ...
Return positions of a regex match() in Javascript?
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exec returns an object with a index property:
var match = /bar/.exec("foobar");
if (match) {
console.log("match found at " + match.index);
}
And for multiple matches:
var re = /bar/g,
str = "foobarfoobar";
while ...
How to get a specific output iterating a hash in Ruby?
I want to get a specific output iterating a Ruby Hash.
6 Answers
6
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Find and Replace Inside a Text File from a Bash Command
... the simplest way to do a find and replace for a given input string, say abc , and replace with another string, say XYZ in file /tmp/file.txt ?
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Can I use require(“path”).join to safely concatenate urls?
...s correctly points out in a comment, url.resolve would only help if the problem is as simple as the example. url.parse also applies to this question because it returns consistently and predictably formatted fields via the URL object that reduces the need for "code full of ifs".
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How do I use the includes method in lodash to check if an object is in the collection?
lodash lets me check for membership of basic data types with includes :
3 Answers
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