escapeTemplateString.ts

import escape from "escape-html";

export const escapeExpression = (strings: TemplateStringsArray, ...unsafeExpressions: string[]) => {

    const escaped: string[] = [];

    let unsafeExpressionIndex = 0;
    let templateStringIndex = 0;

    for (let i = 0; i < strings.length + unsafeExpressions.length; i++) {
        if (i % 2 === 0) {
            escaped.push(strings[templateStringIndex]);
            templateStringIndex++;
        } else {
            escaped.push(escape(unsafeExpressions[unsafeExpressionIndex]));
            unsafeExpressionIndex++;
        }
    }

    return escaped.join("");
};