Function valueToString

packages/search-expression/src/exec.ts:19–31

(value: any)

}

function valueToString(value: any) {
    if (value == null) {
        return '';
    }
    switch (typeof value) {
        case 'string':
            return value;
        case 'boolean':
        case 'number':
            return value.toString();
    }
    return '';
}

function isStringOperation(ex: SearchExpression) {
    switch (ex.operator) {