string-tool/String.js

Useful functions for Strings

"use strict";
exports.__esModule = true;
/**
 * Capitalizes the first letter of the text
 */
function capitalize(text) {
    return text.charAt(0).toUpperCase() + text.slice(1);
}
exports.capitalize = capitalize;
/**
 * Finds the index of the nth occurence of `search`
 */
function nthIndexOf(text, n, search) {
    var index;
    for (; n > 0; --n) {
        index = text.indexOf(search, index);
        if (index === -1) {
            return;
        }
        if (n > 1) {
            index += search.length;
        }
    }
    return index;
}
exports.nthIndexOf = nthIndexOf;
/**
 * Removes the first occurence of `search`
 */
function cutFirst(search, text) {
    var index = text.indexOf(search);
    if (index === -1) {
        return text;
    }
    return text.slice(0, index) + text.slice(index + search.length);
}
exports.cutFirst = cutFirst;
/**
 * Removes everything after (and including) `search`
 *
 * Returns the unmodified text if `search` is not found
 *
 * Useful for extracting the URL protocol:
 * cutBefore(':', 'http://www.example.org/');
 */
function cutBefore(search, text) {
    var index = text.indexOf(search);
    if (index < 0) {
        return text;
    }
    return text.slice(0, index);
}
exports.cutBefore = cutBefore;
/**
 * Removes everything after (and including) the index.
 *
 * Returns the unmodified text if the index is negative.
 */
function cutBeforeIndex(index, text) {
    if (index < 0) {
        return text;
    }
    return text.slice(0, index);
}
exports.cutBeforeIndex = cutBeforeIndex;