Remove text between two parenthesis, if two more parenthesis [closed] - javascript

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I have this string:
"This thing (123, 12) (2005.03 - 2011.12)"
I want to convert it to:
"This thing (2005.03 - 2011.12)"
Meaning remove text between two first parenthesis: (123, 12). But only if there are two or more parenthesis following in same string. So a string like
"Another thing (2005.05 - 2011.08)"
should be left as it is.
How can I do it with javascript?

You can use String.replace() with regex like this https://regex101.com/r/X7ioxu/1
var regex = /(\(.+?\))\s?\(/g;
var str1 = "This thing (123, 12) (2005.03 - 2011.12)";
var str1 = "This thing (2005.03 - 2011.12)";
alert(str1.replace(regex,'('));
alert(str2.replace(regex,'('));

With the data given, this works
var str = "This thing (123, 12) (2005.03 - 2011.12)";
var parts = str.split(/(?=\()/g); // split on ( with lookahead
if (parts.length==3) parts.splice(1,1)
str = parts.join("")
console.log(str)

Related

regex match first occurrence of a single character [closed]

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I'll make this extremely simple
I have a function that comes across a string as such by design: water 'thing one'
I need to split this string by the first space, since there are spaces elsewhere.
I've tried many regex expressions like / .*? /, but they can only match two consecutive spaces.
How do I do this?
Thanks in advance.
If you just want the portion of the string before and after the first space, you could use regex replacement here:
var input = "water 'thing one'";
var first = input.replace(/[ ].*$/, "");
var second = input.replace(/^\S*[ ]/, "");
console.log("first part: " + first);
console.log("second part: " + second);
You can capture them using String#match with this regex:
/(.*?) (.*)/
const text = "water 'thing one'";
const [, first, second] = text.match(/(.*?) (.*)/);
console.log('first:', first);
console.log('second:', second);

Is there a way to remove all characters within two slashes? [closed]

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I am trying to use only regex to remove '/please-remove-this/' and replace '%20' with ' '.
let str = '/please-remove-this/Hello%20world'
let strNew = str.replace(/%20/g, ' ').substring(20)
strNew = 'Hello world'
'Hello world' is the correct output but I feel there is a more efficient way to do this with regex only
Rather replacing %20 you can decode using decodeURI
let str = '/please-remove-this/Hello%20world';
let out = decodeURI(str.replace(/\/.*\//g, ''));
console.log(out)
Using only regex
let str = '/please-remove-this/Hello%20world';
let out = decodeURI(str.replace(/\/.*\/(.*)%20(.*)/, '$1 $2'));
console.log(out)

How to retrieve substring which is outside of brackets in JS? [closed]

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I want the text which is outside of brackets, for eg.
Text is - Outside (inside)
and what I expect is - Outside
Can someone please help me to achieve this.
You can use slice & use indexOf to get the first (. This will extract all the characters before first (
let str = 'Outside (inside)'
let substr = str.slice(0, str.indexOf('('));
console.log(substr.trim())
If you wanted to remove all bracketed text from the string you could use
let str = 'Outside (inside)test(d 342 dd3d)dd(t423t t)dd()fasf(fsdfds32dfs)';
console.log(str.replace(/(\([\w\d ]*\))+/g, ''))

How to show first 2 characters and replace all the last by * [closed]

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I'm wondering how to show the first two characters and replace all last character of a string by symbol *.
Ex: 121,121,121 -> 12x,xxx,xxx .
Thanks
I love using regex when it comes to replace string according to some pattern.
var p = '121,121,121';
var regex = /(?<=.{2})([0-9])/gm;
console.log(p.replace(regex, 'x'));
You can use substring and regular expression. See the sample below.
var str = "121,121,121";
var res = str.substring(0, 2) + '' + str.substring(2, str.length).replace(/[0-9]/g,"x");
alert(res);
Just use substring and replace with a simple regex (to single out digits and keep commas and other punctuation):
const str = "121,121,121";
const obfuscated = `${str.substring(0, 2)}${str.substring(2).replace(/\d/g, "*")}`;
console.log(obfuscated);

split a string, breaking at a different character [closed]

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I have the String:
Name01: Name02 - Project Name (Client) - Infos
Using JavaScript, what is the fastest way to parse this into:
Name01
Name02
Project Name
Client
Infos
You can replace your string with a common character where ever you need. So that you can split on them. Try the following way:
var str = "Name01: Name02 - Project Name (Client) - Infos"
str = str.replace(/[-()]/g,':').split(':');
str = str.filter(i => i.trim()).map(j => j.trim());
console.log(str);
This isn't perfect but its simple:
const str = 'Name01: Name02 - Project Name (Client) - Infos';
const matches = str
.replace(/[^\w\s+]/gi, '')
.replace(/\s\s+/gi, ' ')
.split(' ');
console.log(matches);
The issue here is keeping the space between Project Name.

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