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tryRequire
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Wrap
requirein a try/catch block.
bash
npm install @stdlib/utils-try-require
javascript
var tryRequire = require( '@stdlib/utils-try-require' );
#### tryRequire( id )
Wraps require in a try/catch block. If able to resolve a module id, the function returns the value bound to module.exports in the resolved module. Otherwise, the function returns an Error.
javascript
var x = tryRequire( 'beep' );
if ( x instanceof Error ) {
console.log( x.message );
}
javascript
var resolve = require( 'path' ).resolve;
var out = tryRequire( resolve( '/foo/bar/baz', '..', 'lib', 'beep.js' ) );
if ( out instanceof Error ) {
console.error( out.message );
}
javascript
var tryRequire = require( '@stdlib/utils-try-require' );
var out = tryRequire( '_abcdefghijklmnopqrstuvwxyz123456789_' );
if ( out instanceof Error ) {
console.error( out.message );
} else {
throw new Error( 'expected an error' );
}
out = tryRequire( '@stdlib/utils-try-require' );
if ( out !== tryRequire ) {
throw new Error( 'expected export' );
}
