webnative/lib/common/type-checks.js

export const isDefined = (val) => {
    return val !== undefined;
};
export const notNull = (val) => {
    return val !== null;
};
export const isJust = notNull;
export const isValue = (val) => {
    return isDefined(val) && notNull(val);
};
export const isBool = (val) => {
    return typeof val === 'boolean';
};
export const isNum = (val) => {
    return typeof val === 'number';
};
export const isString = (val) => {
    return typeof val === 'string';
};
export const isObject = (val) => {
    return val !== null && typeof val === 'object';
};
export const isBlob = (val) => {
    if (typeof Blob === 'undefined')
        return false;
    return val instanceof Blob || (isObject(val) && val?.constructor?.name === 'Blob');
};
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