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String manipulation to find variables in string

By : lactozily
Date : September 17 2020, 02:00 AM
I wish this help you I am working with JS and have a problem where I have two strings such as: , You can use the regex, there is an example
code :
var test = "This is a {feature1} and {feature2} boy.";
var data = "This is a very good and smart boy.";

let resp = findFeatures(test);
function findFeatures(data) {

    let features = {};

    data.match(/\{(.+?)\}/g).forEach(result => {
        features[result.slice(1, -1)] = ""

    let matches = matchWithData(test);
    if (Object.keys(features).length > 0 && matches.length == Object.keys(features).length) { // if pattern results matches with data
        Object.keys(features).forEach((feature, index) => {
            features[feature] = matches[index]
    return features;

function matchWithData(test) {

    let regex = test.replace(/\{.+?\}/g, "(.*)");

    if (new RegExp(regex).test(data)) // data matches with test
        return data.match(new RegExp(regex)).slice(1); // get features
    return [];

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String Manipulation.Find string between 2 indexes

By : BSL
Date : March 29 2020, 07:55 AM
Does that help Use the string.Substring() method.
Like var truncString = longString.Substring(400, 30);.

c++ string manipulation to find same start/end ranges in a string

By : user4705661
Date : March 29 2020, 07:55 AM
this will help I have a string with ranges like eg. "0-0,4-7,9-9", and I need to find out all ranges with same start and end and modify to them to "0,4-7,9".
code :
while ( (orig_str.find(",") != std::string::npos) &&  (orig_str.find("-") != std::string::npos) )
sub = orig_str.substr(0, orig_str.find_first_of(","));
orig_str = orig_str.substr(orig_str.find_first_of(",")+1);
cout << "sub = " << sub << endl;
cout << "orig_str = " << orig_str << endl;
if (sub.substr(0,sub.find_first_of("-")) == sub.substr(sub.find_first_of("-")+1) )
    sub.erase(0, sub.find_first_of("-")+1);
    cout << "sub2 = " << sub << endl;
    final = final + sub + ",";
    cout << "final = " << final << endl;
    final = final + sub + ",";
cout << "final2 = " << final << endl;

String manipulation and formatting issue (parsed string from JSON needs manipulation /w JAVA - java classes included)

By : user3329892
Date : March 29 2020, 07:55 AM
may help you . You can change the setType(...) method of your Manager class to something like this:
code :
 public void setType(String type) {
    type = type.replace("H", "hardworking ");
    type = type.replace("L", "loyal ");
    type = type.replace("F", "funny ");
    type = type.replace("S", "serious "); 
    type = type.replace("O", "outgoing ");
    this.type = type;

String manipulation algorithm to find string greater than original string

By : Kaylee Jane Rhodes
Date : March 29 2020, 07:55 AM
With these it helps You can try something like this:
iterate the characters in the string in reverse order keep track of the characters you've already seen, and where you saw them if you've seen a character larger than the curent character, swap it with the smallest larger character sort all the characters after the that position to get the minimum string
code :
def next_word(word):
    word = list(word)
    seen = {}
    for i in range(len(word)-1, -1, -1):
        if any(x > word[i] for x in seen):
            x = min(x for x in seen if x > word[i])
            word[i], word[seen[x]] = word[seen[x]], word[i]
            return ''.join(word[:i+1] + sorted(word[i+1:]))
        if word[i] not in seen:
            seen[word[i]] = i

for word in ["hefg", "dhck", "dkhc", "fedcbabcd"]:
    print(word, next_word(word))
hefg hegf
dhck dhkc
dkhc hcdk
fedcbabcd fedcbabdc

String manipulation then applying dummy variables to them

By : Andrew Seleznov
Date : March 29 2020, 07:55 AM
it helps some times Use Series.str.get_dummies:
code :
df_dummies = movie_data['Movie_Category'].str.get_dummies(',')
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