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I have a problem in some substitution in javascript (HTML).
I need to substitute ONLY the tags around every number, e.g.
<1>
become:
<sub>1</sub>
or
<20>
become
<sub>20</sub>
etc.
How can I do?
Thank you so much!
You can use replace and regex with groups to achieve this:
var text = '<1>blabla<20>';
var newText = text.replace(/<(\d+)>/g, '<sub>$1</sub>');
console.log(newText);
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I have an array of strings denoting variants of shirts in my store.
Here is an example string:
Apparel-DTG-Tshirt-District-DT6000-M-Black-Mens-CF-20200304113232677
All of the strings share same structure and the rule that I need to implement is, extract what's in between 5th and 6th occurrence of - (dash). In this particular case this is M.
How do I do that?
This would help you. The first capturing group will be the value between fifth and sixth dash:
https://regex101.com/r/UlQBqy/2
const re = /^(?:[^-]*-){5}(.*?)(?=-)/
console.log("Apparel-DTG-Tshirt-District-DT6000-M-Black-Mens-CF-20200304113232677".match(re)[1])
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I have a requirement to allow any digits with only one character (either w or d or W or D) at a time with no sequence.
For example: 2 or 2w or 222W or 2d or 222D
(not like 2wd, 55dw, 2w5d, 2w5w, 2D5D etc)
Could you please provide solution on this. Thanks.
Try the following:
^\d+[wdWD]?$
Try it out:https://regex101.com/r/sYqjTi/1
If you don't want it to match just 2, remove the ?, it will make the last letter required.
This regex should work both on Java and JavaScript.
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I have a string like
Menu: apple, orange-juice, bananas
I want to use REGEX to match only apple orange-juice bananas
I have tried to search Google and regex101.com for help but still no any idea.
I would appreciate any help! Thank you
You can do the following in javascript :
var string = "Menu: apple, orange-juice, bananas";
console.log(string.replace(/Menu: |\,/g, ""))
Regex101 : https://regex101.com/r/N0AfW7/1
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I just wanted to know difference between (/\s{2,}/) and (/\s{2,''}/) regular expressions?
Please explain with an example.
Are \s{2,} and \s{2,''} the same?
NO, both are different.
\s{2,} --> Two or more spaces.
\s{2,''} --> Matches a white space character[\r\n\t\f] and literal {2,''}
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Please have a look at https://github.com/eligrey/classList.js/blob/master/classList.js :
if ("document" in self && !("classList" in document.createElement("_"))) {
//...
}
What is the purpose of document.createElement("_")? I know it creates an html element, but why use _ instead of an html element name?
It creates an element with the tag <_>. I see no reasonable purpose to this.