simplex-lang/build/src/tools/index.js

SimplEx - simple expression language

export * from './cast.js';
export * from './ensure.js';
export * from './guards.js';
// eslint-disable-next-line @typescript-eslint/unbound-method
const toString = Object.prototype.toString;
/**
 * Converts instances of Number, String and Boolean to primitives
 */
export function unbox(val) {
    if (typeof val !== 'object' || val === null)
        return val;
    const objConstructor = val.constructor;
    if (objConstructor === Number ||
        objConstructor === String ||
        objConstructor === Boolean) {
        return val.valueOf();
    }
    return val;
}
/**
 * Returns more specific type of a value
 */
export function typeOf(val) {
    const type = typeof val;
    if (type === 'number') {
        if (Number.isFinite(val))
            return 'number';
        else if (val === Number.NEGATIVE_INFINITY)
            return '-Infinity';
        else if (val === Number.POSITIVE_INFINITY)
            return 'Infinity';
        else
            return 'NaN';
    }
    if (type === 'object') {
        return toString.call(val).slice(8, -1);
    }
    return type;
}
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