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I have a string like command--o1--o2--o3 ( command,o1,o2,o3 are arbitrary words)
And I want get [o1, o2, o3] though a Regular Expression(Not a array operation or other ways. JUST only use Regular Expression).
Is there any idea to accomplish this !?
If you're using JavaScript, and assuming you want all strings after a --, you may do
var things = str.split(/--/).slice(1)
If you just want to get the 2 characters words following --, then you may use
var things = str.match(/--\w\w/g).map(function(s){ return s.slice(2) })
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I have a string that looks like "{`index`:`20`,`value`:`RA`}<1", and I want it to become "`RA`<1". I don't think the replace function is sufficient as the index and value changes based on what I enter. Is there a way to do that?
assuming the required string is everything after the last :, except for the }, the original string can be sliced and edited as follows:
const string = "{`index`:`20`,`value`:`RA`}<1";
let newString = string.slice(string.lastIndexOf(":")+1).split("}").join("");
console.log(newString);
This will always append everything after the final } to everthing before it but after the last :, regardless of the earlier content.
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I have a data that looks like this
Huawei Y7P Art-L28 (4/64gb) (AAAAAAAAAAAAAA) EXP:02/19/2020
Huawei Y9 prime 2019 (BBBBBBBBBBBBBBB) EXP:07/17/2019
Oppo A31 4gb/128gb (CCCCCCCCCCCCCCC)
Vivo Y15 5000mah 4GB/64GB (1901) (DDDDDDDDDDDDDDD) EXP:06/14/2019
And the I want to get this data
AAAAAAAAAAAAAA
BBBBBBBBBBBBBBB
CCCCCCCCCCCCCCC
DDDDDDDDDDDDDDD
Basically what I want to happen is to extract the data from the set of word but my problem here is that its very unpredictable. It has no pattern at all so its hard to separate the string.
Assuming that you need a substring in last parenthesis:
SELECT SUBSTRING_INDEX(SUBSTRING_INDEX(column, '(', -1), ')', 1)
FROM source_table
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I have a requirement where i will get the input from the user. He can enter
"features1,feature2",feature3,"feature4"
something like this. I'm using this
let arr: any = message.split(/,(?=(?:(?:[^"]*"){2})*[^"]*$)/)
to split the string and i'm getting result like
[""feature1,feature2"","feature3",""feature4""]
but i want the result like this
["feature1,feature2","feature3","feature4"]
I don't thing what you're trying to achieve is possible only using split function.
After you split, loop over the error and replace " with `` (empty).
const message = `"features1,feature2",feature3,"feature4"`;
let arr = message.split(/,(?=(?:(?:[^"]*"){2})*[^"]*$)/);
arr = arr.map(el=>el.replace(/"/g,''));
console.log(arr);
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I have a string like this: *ngIf="thisThing > 0"
Using RegEx, I'd like to select/return ONLY the > or in some cases, <.
I have the following expression: (?<=")(?:.*?)(<|>)(?:.*?)(?=") but this still selects everything inside the quotes. I only want to match that >.
I've been testing it here: https://regex101.com/r/4KPfbT/1
I guess you're over-complexifying it. Why not this way:
\w*=".*([<>]).*"
It works, take a look:
console.log('*ngIf="thisThing > 0"'.match(/w*=".*([<>]).*"/)[1])
console.log('whatever="otherThing < 999"'.match(/w*=".*([<>]).*"/)[1])
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I'm trying to make something that gives an output based on your input. I would like it to take every letter and produce something with the next letter in the alphabet. So if I entered "Hello" it would produce "Ifmmp". The only way I can think to do this is with a series of ifs and else ifs, but I would like to know if there is a faster way.
You can use the String.fromCharCode feature. For example:
let myChar = 'c';
let nextChar = String.fromCharCode(myChar.charCodeAt(0)+1);
console.log(nextChar) // 'd'
In your case, you would replace 'c' with your character variable.