rxjs-zone-less/es2015/observable/utils.js

A set of wrappers for RxJS to avoid unnecessary change detection and zone interference in Angular.

export function isNumeric(val) {
    // parseFloat NaNs numeric-cast false positives (null|true|false|"")
    // ...but misinterprets leading-number strings, particularly hex literals ("0x...")
    // subtraction forces infinities to NaN
    // adding 1 corrects loss of precision from parseFloat (#15100)
    return !Array.isArray(val) && val - parseFloat(val) + 1 >= 0;
}
export function isScheduler(value) {
    return value && typeof value.schedule === 'function';
}