rtree-sql.js
Version:
SQLite library with support for opening and writing databases, prepared statements, and more. This SQLite library is in pure javascript (compiled with emscripten).
60 lines (53 loc) • 1.98 kB
HTML
<meta charset="utf8" />
<html>
<script src='http://requirejs.org/docs/release/2.3.6/minified/require.js'></script>
<script>
var baseUrl = '../dist'
require.config({
baseUrl: baseUrl
});
// Options: 'sql-wasm', 'sql-asm', 'sql-asm-memory-growth.js', 'sql-wasm-debug', 'sql-asm-debug'
require(['sql-wasm'],
function success(initSqlJs) {
console.log(typeof initSqlJs);
if (typeof initSqlJs !== 'function') {
document.body.style.backgroundColor = 'red';
console.log('initSqlJs returned: ', initSqlJs);
alert("Failed to require sql.js through AMD");
return;
}
// The `initSqlJs` function is globally provided by all of the main dist files if loaded in the browser.
// We must specify this locateFile function if we are loading a wasm file from anywhere other than the current html page's folder.
var config = {
locateFile: filename => `${baseUrl}/${filename}`
}
initSqlJs(config).then(function (SQL) {
//Create the database
var db = new SQL.Database();
// Run a query without reading the results
db.run("CREATE TABLE test (col1, col2);");
// Insert two rows: (1,111) and (2,222)
db.run("INSERT INTO test VALUES (?,?), (?,?)", [1, 111, 2, 222]);
// Prepare a statement
var stmt = db.prepare("SELECT * FROM test WHERE col1 BETWEEN $start AND $end");
stmt.getAsObject({ $start: 1, $end: 1 }); // {col1:1, col2:111}
// Bind new values
stmt.bind({ $start: 1, $end: 2 });
while (stmt.step()) { //
var row = stmt.getAsObject();
// [...] do something with the row of result
console.log('Here is a row: ', row);
}
});
},
function error(err) {
document.body.style.backgroundColor = 'red';
console.log(err);
alert("Module load failed: " + err);
}
);
</script>
<body>
Output is in Javscript console
</body>
</html>