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How do you check if a selector matches something in jQuery? [duplicate]
...e slower- you can do:
jQuery.fn.exists = function(){return this.length>0;}
Then in your code you can use
if ($(selector).exists()) {
// Do something
}
As answered here
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uppercase first character in a variable with bash
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foo="$(tr '[:lower:]' '[:upper:]' <<< ${foo:0:1})${foo:1}"
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How can I concatenate two arrays in Java?
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edited May 30 '19 at 13:32
community wiki
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How to do a logical OR operation in shell scripting
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1001
This should work:
#!/bin/bash
if [ "$#" -eq 0 ] || [ "$#" -gt 1 ] ; then
echo "hello"
fi...
What is the difference between Digest and Basic Authentication?
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204
Digest Authentication communicates credentials in an encrypted form by applying a hash function...
Scatterplot with marginal histograms in ggplot2
... of the ggplot objects:
hist_top <- ggplot()+geom_histogram(aes(rnorm(100)))
empty <- ggplot()+geom_point(aes(1,1), colour="white")+
theme(axis.ticks=element_blank(),
panel.background=element_blank(),
axis.text.x=element_blank(), axis.text.y=element_bl...
Why there can be only one TIMESTAMP column with CURRENT_TIMESTAMP in DEFAULT clause?
... has been lifted in recent versions of MySQL:
Changes in MySQL 5.6.5 (2012-04-10, Milestone 8)
Previously, at most one TIMESTAMP column per table could be
automatically initialized or updated to the current date and time.
This restriction has been lifted. Any TIMESTAMP column definitio...
Stripping out non-numeric characters in string
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edited Oct 20 '10 at 12:23
answered Oct 20 '10 at 12:04
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Apache and Node.js on the Same Server
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10 Answers
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What is the shortest function for reading a cookie by name in JavaScript?
...onally it should be pointed out that according to the official spec (RFC 2109), the space after the semicolon which separates cookies in the document.cookie is optional and an argument could be made that it should not be relied upon. Additionally, whitespace is allowed before and after the equals si...