大约有 47,000 项符合查询结果(耗时:0.0488秒) [XML]
Best way to iterate through a Perl array
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answered May 7 '12 at 20:00
ikegamiikegami
308k1414 gold badges212212 silver badges451451 bronze badges
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How can I test that a value is “greater than or equal to” in Jasmine?
I want to confirm that a value is a decimal (or 0), so the number should be greater than or equal to zero and less than 1.
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What is the best way to count “find” results?
...ntf '.' \; | wc -c , but this takes far too long when there are more than 10000 results. Is there no faster/better way to do this?
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An example of how to use getopts in bash
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#!/bin/bash
usage() { echo "Usage: $0 [-s <45|90>] [-p <string>]" 1>&2; exit 1; }
while getopts ":s:p:" o; do
case "${o}" in
s)
s=${OPTARG}
((s == 45 || s == 90)) || usage
;;
p)
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MySQL stored procedure vs function, which would I use when?
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105
You can't mix in stored procedures with ordinary SQL, whilst with stored function you can.
e.g...
Library not loaded: /usr/local/opt/readline/lib/libreadline.6.2.dylib
... El Capitan
– Sebastian Sastre
Oct 20 '16 at 13:18
6
My issue seems to have been related to pytho...
How to install a specific version of a ruby gem?
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answered Jun 10 '13 at 14:37
mjsmjs
54.3k2424 gold badges7979 silver badges111111 bronze badges
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Using jQuery to center a DIV on the screen
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1076
I like adding functions to jQuery so this function would help:
jQuery.fn.center = function ()...
Placing border inside of div and not on its edge
...-box-sizing: border-box;
-webkit-box-sizing: border-box;
width: 100px;
height: 100px;
border: 20px solid #f00;
background: #00f;
margin: 10px;
}
div + div {
border: 10px solid red;
}
<div>Hello!</div>
<div>Hello!</div>
It works...
PostgreSQL LIKE query performance variations
...to a particular table in my database. Sometimes I will get results within 200-400 ms (very acceptable) but other times it might take as much as 30 seconds to return results.
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