03-23-2019
Your question makes no sense.
The web uses HTTP as a universal protocol for client-server web transactions.
The server and the client are independent objects/ entities that can exchange data because of HTTP. Javascript or not, curl or not, wget or not? These topics are an independent and mostly unrelated issue.
That is why there are communication protocols, to decouple the application and underlying programming language from the client-server comms. In this case:
Hypertext Transfer Protoco (HTTP)
So, it should not matter if talking "shoestring" to "elephant ear" as long as both the client and the server adhere to the same HTTP protocol standard(s).
Anyway, underlying most Javascript implements like node.js (on the server side) is C++ and the same is true of wget, curl, etc. At the core of most of all this is C++ (not that it matters).
Regardless of the programming language, HTTP-based client-server applications can communicate (exchange data) because they follow the same set of communication protocol standards.
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LEARN ABOUT MOJAVE
curlopt_tcp_keepintvl
CURLOPT_TCP_KEEPINTVL(3) curl_easy_setopt options CURLOPT_TCP_KEEPINTVL(3)
NAME
CURLOPT_TCP_KEEPINTVL - set TCP keep-alive interval
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TCP_KEEPINTVL, long interval);
DESCRIPTION
Pass a long. Sets the interval, in seconds, that the operating system will wait between sending keepalive probes. Not all operating systems
support this option. (Added in 7.25.0)
DEFAULT
60
PROTOCOLS
All
EXAMPLE
CURL *curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
/* enable TCP keep-alive for this transfer */
curl_easy_setopt(curl, CURLOPT_TCP_KEEPALIVE, 1L);
/* set keep-alive idle time to 120 seconds */
curl_easy_setopt(curl, CURLOPT_TCP_KEEPIDLE, 120L);
/* interval time between keep-alive probes: 60 seconds */
curl_easy_setopt(curl, CURLOPT_TCP_KEEPINTVL, 60L);
curl_easy_perform(curl);
}
AVAILABILITY
Always
RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
SEE ALSO
CURLOPT_TCP_KEEPALIVE(3), CURLOPT_TCP_KEEPIDLE(3),
libcurl 7.54.0 January 02, 2017 CURLOPT_TCP_KEEPINTVL(3)