16 lines
452 B
Plaintext
16 lines
452 B
Plaintext
var isProduction = process.env.NODE_ENV === 'production';
|
|
var prefix = 'Invariant failed';
|
|
function invariant(condition, message) {
|
|
if (condition) {
|
|
return;
|
|
}
|
|
if (isProduction) {
|
|
throw new Error(prefix);
|
|
}
|
|
var provided = typeof message === 'function' ? message() : message;
|
|
var value = provided ? "".concat(prefix, ": ").concat(provided) : prefix;
|
|
throw new Error(value);
|
|
}
|
|
|
|
export { invariant as default };
|