@antv/t8/lib/utils/isType.js

T8 is a text visualization solution for unstructured data within the AntV technology stack, and it is a declarative T8 markdown syntax that can be used to describe the content of data interpretation reports.

'use strict';

function isString(val) {
    return typeof val === 'string';
}
function isObject(val) {
    return typeof val === 'object';
}
function isFunction(val) {
    return typeof val === 'function';
}
function isNil(val) {
    return val === null || val === undefined;
}
function isEmpty(val) {
    if (Array.isArray(val)) {
        return val.length === 0;
    }
    return val === null || val === undefined || val === '';
}
function isNumber(val) {
    return typeof val === 'number';
}

exports.isEmpty = isEmpty;
exports.isFunction = isFunction;
exports.isNil = isNil;
exports.isNumber = isNumber;
exports.isObject = isObject;
exports.isString = isString;
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