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/**
* Formats a string with the given replacements.
* @param {string} start - the start of the separator string or the entire separator string
* @param {string} [end] - the start of the separator
* @example
```
formatString("Hello {name}", { name:"Dolores" })
> Hello Dolores
```
```
formatString("Hello {{name}}", { name:"Dolores" }, "{{}}")
> Hello Sameer
```
* @example
```
formatString("Hi, my name is {name} and I am {age} years old.", { name: "Dolores", age: 24000 }, "{}")
> Hi, my name is Dolores and I am 24000 years old.
```
* @example
```
formatString("Hi, my name is {#name#} and I am {#age#} years old.", { name: "Dolores", age: 24000 }, "{#", "#}")
> Hi, my name is Dolores and I am 24000 years old.
```
* @example
```
formatString("Hi, my name is {#name#} and I am {#age#} years old.", { name: "Dolores", age: 24000 }, "{##}")
> Hi, my name is Dolores and I am 24000 years old.
```
* @returns
*/
function formatString(
text: string,
replacements: Record<string, string | number>,
start?: string,
end?: string
): string;
function formatString(
text: string,
replacements: Record<string, string | number>,
start: string,
end?: string
): string;
function formatString(
text: string,
replacements: Record<string, string | number>,
start: string,
end: string
): string {
if (!start && end) end = undefined;
if (!start) start = "{}";
if (typeof end === "undefined") {
end = start.substring(start.length / 2);
start = start.substring(0, start.length / 2);
}
if (start === end) return text;
if (!start.replace(/\s/g, "").length || !end.replace(/\s/g, "").length) {
throw new Error(
"You cannot only use whitespace as a separator. Please include a character for specifying separators better."
);
}
const startRegex = escapeRegex(start);
const endRegex = escapeRegex(end);
for (const arg in replacements) {
if (
typeof replacements[arg] === "string" ||
typeof replacements[arg] === "boolean" ||
typeof replacements[arg] === "number"
) {
text = text.replace(
new RegExp(startRegex + arg + endRegex, "gi"),
replacements[arg].toString()
);
}
}
return text;
}
export default formatString;
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