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* @license Apache-2.0
*
* Copyright (c) 2022 The Stdlib Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
'use strict';
// MODULES //
var interpolate = require( '@stdlib/string/base/format-interpolate' );
var tokenize = require( '@stdlib/string/base/format-tokenize' );
var isString = require( './is_string.js' );
// MAIN //
/**
* Inserts supplied variable values into a format string.
*
* @param {string} str - input string
* @param {Array} ...args - variable values
* @throws {TypeError} first argument must be a string
* @throws {Error} invalid flags
* @returns {string} formatted string
*
* @example
* var str = format( 'Hello %s!', 'world' );
* // returns 'Hello world!'
*
* @example
* var str = format( 'Pi: ~%.2f', 3.141592653589793 );
* // returns 'Pi: ~3.14'
*/
function format( str ) {
var args;
var i;
if ( !isString( str ) ) {
throw new TypeError( format( 'invalid argument. First argument must be a string. Value: `%s`.', str ) );
}
args = [ tokenize( str ) ];
for ( i = 1; i < arguments.length; i++ ) {
args.push( arguments[ i ] );
}
return interpolate.apply( null, args );
}
// EXPORTS //
module.exports = format;
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